Question 1
________ influences the rate of weathering and humus in soil formation.
A. Flora & Fauna
B. Time
C. Parent rock
D. Climate
View Answer
Answer: Option D
Explanation:
Climate influences the rate of weathering and humus in soil formation. Although amount of humus content depends on flora and fauna but rate of formation also depends upon climate. Weathering also is a insitu degradation of rocks due to erosional agents such as air, water and ice.
Question 2
A place having an average annual temperature of 27°C and an annual rainfall of over 200 cm. could be ________
A. Tehran
B. Singapore
C. Nagpur
D. Moscow
View Answer
Answer: Option B
Explanation:
A place having an average annual temperature of 27°C and an annual rainfall of over 200 cm would be Singapore.
Question 3
Although hot deserts have a very low annual rainfall, occasional heavy rain storms do occur and these sometimes produce steep-sided, flat-floored valleys called ________
A. Gorges
B. Wadi
C. Canyons
D. Barchans
View Answer
Answer: Option B
Explanation:
Although hot deserts have a very low annual rainfall, occasional heavy rain storms do occur and these sometimes produce steep-sided, flat-floored valleys called Wadi.
Question 4
Although the equatorial regions have the highest annual average temperatures, the salinity in the oceans is highest near the tropics because:
1. equatorial areas receive heavy rainfall
2. salinity is not affected by temperature
3. equatorial oceans experience a lot of turbulenees
4. high relative humidity in equatorial areas checks evaporation
A. 1, 2 and 4
B. 1 and 3
C. 1, 3 and 4
D. 1 and 4
View Answer
Answer: Option A
Explanation:
Although the equatorial regions have the highest annual average temperatures, the salinity in the oceans is highest near the tropics because equatorial areas receive heavy rainfall, salinity is not affected by temperature and high relative humidity in equatorial areas checks evaporation
Question 5
Among foodgrains, international trade of rice is quite small because ________
A. It is not the main food grain of human consumption
B. Its transport cost is high
C. Rice gets spoilt during storage and transport
D. Major producer regions are major consumers also
View Answer
Answer: Option D
Explanation:
Among foodgrains, international trade of rice is quite small because major producer regions are major consumers also.
Question 6
Central and western part of California experience climate ________
A. Monsoon
B. Mediterranean
C. Taiga
D. Sudan
View Answer
Answer: Option B
Explanation:
Central and western part of california experience mediterranean climate. The mild temperatures and winter rain of the Mediterranean climate support some of the highest species richness in the state. California's higher elevations, such as those found in the Modoc and Sierra regions, generally have two major climate types: a Cool Interior climate and a Highland climate.
Question 7
Chemical weathering includes ________
A. Oxidation, reduction and exfoliation
B. Carbonation, oxidation and exfoliation
C. Exfoliation, solution and reduction
D. Solution, oxidation and reduction
View Answer
Answer: Option D
Explanation:
Chemical weathering includes Solution, oxidation and reduction. Chemical weathering is the weakening and subsequent disintegration of rock by chemical reactions.
Question 8
China type of climate prevails in ________
A. China, Korea and Vietnam
B. Southern China, Vietnam and Laos
C. Central China, North China and Southern Japan
D. North China, Southern Russia and Japan
View Answer
Answer: Option C
Explanation:
China type of climate prevails in Central China, North China and Southern Japan. China type Climate are Warm Temperate Eastern Margin Climate.
Question 9
Climate of a place is dependent on several factors. Which one of the following is the most significant?
A. Distance from sea
B. Direction of winds
C. Latitude
D. Ocean currents
View Answer
Answer: Option C
Explanation:
Climate of a place is mainly dependent on Latitude. Therefore, higher latitudes receive less heat than lower latitude areas nearer the equator.
Question 10
Consider the following statements about anticyclones:
1. The winds are divergent, and spiral out from the centre of high pressure
2. The air moves clockwise in the Northern Hemisphere and anticlockwise in Southern Hemisphere
3. It is accompanied by heavy rainfall
4. A sudden rise in barometric reading heralds the approach of anticyclone
Which of these statements are correct?
A. 1 and 4
B. 3 and 4
C. 2 and 3
D. 2 and 4
View Answer
Answer: Option D
Explanation:
The statements thar are correct are that The air moves clockwise in the Northern Hemisphere and anticlockwise in Southern Hemisphere and A sudden rise in barometric reading heralds the approach of anticyclone.
Question 11
Consider the following statements about the 'Roaring Forties':
1. They blow uninterrupted in the Northern and Southern Hemispheres
2. They blow with great strength and constancy
3. Their direction is generally from North-West to East in the Southern Hemisphere
4. Overcast skies, rain and raw weather are generally associated with them
A. 1, 2 and 3
B. 2, 3 and 4
C. 1, 3 and 4
D. 1, 2 and 4
View Answer
Answer: Option B
Explanation:
The statements about the 'Roaring Forties' are l They blow with great strength and constancy, Their direction is generally from North-West to East in the Southern Hemisphere and Overcast skies, rain and raw weather are generally associated with them.
Question 12
Consider the following statements associated with Mediterranean climate:
1. It is so named because it occurs extensively in the periphery of Mediterranean sea.
2. These lands are exposed to hot, dry, land winds during the summer months.
3. The seasonal range of temperatures is considerable less than that in other areas of corresponding latitudes.
Which of these statements are correct?
A. 1, 2 and 3
B. 1 and 2
C. 2 and 3
D. 1 and 3
View Answer
Answer: Option A
Explanation:
All the statements are correct associated with Mediterranean climate: It is so named because it occurs extensively in the periphery of Mediterranean sea, These lands are exposed to hot, dry, land winds during the summer months and The seasonal range of temperatures is considerable less than that in other areas of corresponding latitudes.
Question 13
Consider the following statements:
1. The movement of the isotherms is greater over the land than it is over the oceans.
2. Coastal regions have a smaller range of temperature than do continental interiors.
Which of these statements is/are correct ?
A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
View Answer
Answer: Option C
Explanation:
The statements that are correct are The movement of the isotherms is greater over the land than it is over the oceans and Coastal regions have a smaller range of temperature than do continental interiors.
Question 14
Contours' are lines connecting places having ________
A. Equal temperature
B. Equal pressure
C. Equal rainfall
D. Equal height
View Answer
Answer: Option D
Explanation:
Contours' are lines connecting places having Equal height. Contour lines are isolines joining places that have the same height value. Another common isoline is the isobar, a line that joins places with the same atmospheric pressure.
Question 15
Daily weather map showing isobars is an example of
A. Choropleth map
B. Isopleth map
C. Chorochromatic map
D. Choroschematic map
View Answer
Answer: Option B
Explanation:
Daily weather map showing isobars is an example of Isopleth map. Isopleth map shows an imaginary surface by means of lines joining points of equal values.
Question 16
High mean temperature, high relative humidity and heavy rainfall (well distributed all over the year) are the characteristic features of the ________
A. Monsoon region
B. Mediterranean region
C. Equatorial region
D. Savanna region
View Answer
Answer: Option C
Explanation:
High mean temperature, high relative humidity and heavy rainfall (well distributed all over the year) are the characteristic features of the Equatorial region. A tropical rainforest climate is a tropical climate usually found within 10° to 15° latitude of the equator, and has at least 60 mm (2.4 inches) of rainfall every month of the year.
Question 17
In which of the following countries, has maximum damage to the forest been caused by acid rain?
A. Spain
B. Netherlands
C. Poland
D. Italy
View Answer
Answer: Option C
Explanation:
Acid rain describes any form of precipitation that contains high levels of nitric and sulfuric acids. It can also occur in the form of snow, fog, and tiny bits of dry material that settle to Earth. Poland has maximum damage to the forest been caused by acid rain.
Question 18
Monsoon effect is also experienced in ________
A. East Africa
B. Nile Basin
C. South Africa
D. West Africa
View Answer
Answer: Option A
Explanation:
Monsoon effect is also experienced in East Africa. The monsoon winds of eastern Africa, with their characteristic seasonal reversal from the northeast (NE) to the southeast (SE), are a major influence on the climate and seas, affecting weather patterns, rainfall and human activities.
Question 19
Perspiration is maximum when temperature is ________
A. Low and air is dry
B. Low and air is humid
C. High and air is dry
D. High and air is humid
View Answer
Answer: Option D
Explanation:
Perspiration is maximum when temperature is High and air is humid. As air temperature increases, air can hold more water molecules, and its relative humidity decreases. When temperatures drop, relative humidity increases. High relative humidity of the air occurs when the air temperature approaches the dew point value. Temperature therefore directly relates to the amount of moisture the atmosphere can hold.
Question 20
Rainfall caused by intense evaporation equatorial areas is called ________.
A. Orographic rainfall
B. Cyclonic rainfall
C. Frontal rainfall
D. Convectional rainfall
View Answer
Answer: Option D
Explanation:
Convectional rainfall occurs when air gets heated & rise up producing clouds responsible for hunderstorm & lightning. Such a weather phenomenon is common inequatorial region where sun rays fall vertically over head throughout the year. Hence afternoon rain occurs almost everyday in this region.
Question 21
Rainfall in the doldrums is of the nature of ________
A. Orographic precipitation
B. Natural precipitation
C. Frontal precipitation
D. Convectional precipitation
View Answer
Answer: Option A
Explanation:
Rainfall in the doldrums is of the nature of Orographic precipitation. Orographic Rainfall is a form of precipitation where warm moist parcels of air from an ocean, Sea or lake rises over a barrier such as a mountain.
Question 22
Scanty rainfall of less than 50 cm per annum is received by ________
A. The coastal areas in the warm temperate zone
B. The eastern parts of the temperate lands
C. The areas of high latitudes
D. The areas of equatorial regions
View Answer
Answer: Option C
Explanation:
Scanty rainfall of less than 50 cm per annum is received by the areas of high latitudes. There are three such areas in India Northern Gujarat, western Rajasthan and the southern parts of Punjab-Haryana, The rain-shadow area of the Western Ghats and The desert of Ladakh.
Question 23
Seasonal contrast in temperature are minimum in the equatorial region because ________
A. Sky is always overcast
B. Sun is almost vertically overhead throughout the year
C. Forests prevent sunlight from reaching the ground
D. Rainfall cool the atmosphere
View Answer
Answer: Option B
Explanation:
Seasonal contrast in temperature are minimum in the equatorial region because Sun is almost vertically overhead throughout the year.
Question 24
Shallow-rooted trees are associated with ________
A. Savanna climate
B. Temperate climate
C. Tropical climate
D. Equatorial climate
View Answer
Answer: Option D
Explanation:
Shallow-rooted trees are associated with Equatorial climate. The roots of these type of trees go down only 4 to 8 inches into the ground. Shallow roots are even visible above the ground. Visible roots, or surface roots, may become a nuisance in a yard.
Question 25
Summer rains in Australia broadly decreases from
A. East to west
B. West to east
C. North to south
D. South to north
View Answer
Answer: Option C
Explanation:
Summer rains in Australia broadly decreases from North to south. When long dry periods are interrupted by welcome periods of wet weather, the rain is more likely to fall as heavy downpours than as extended drizzle.
Question 26
The average annual temperature is 19°C. An average annual rainfall of about 120 cm is distributed throughout the year, Late summer and autumn are the dreaded seasons of hurricanes and typhoons. These are the climatic conditions of ________
A. China type
B. Sudan type
C. Tropical desert type
D. Taiga type
View Answer
Answer: Option A
Explanation:
The average annual temperature is 19°C. An average annual rainfall of about 120 cm is distributed throughout the year, Late summer and autumn are the dreaded seasons of hurricanes and typhoons. These are the climatic conditions of China type.
Question 27
The climate best suited for horticulture is ________
A. Equatorial
B. Mediterranean
C. Monsoon
D. Tundra
View Answer
Answer: Option B
Explanation:
The climate best suited for horticulture is Mediterranean. It includes the cultivation of medicinal plants, fruits, vegetables, nuts, seeds, herbs, sprouts, mushrooms, algae, flowers, seaweeds and non-food crops such as grass and ornamental trees and plants.
Question 28
The climate of a place is decided by ________
A. Proximity to the sea
B. Altitude
C. Latitude
D. All the above
View Answer
Answer: Option D
Explanation:
The climate of a place is decided by Proximity to the sea, Altitude and Latitude. Latitude, or how far one is from the equator, greatly affects the climate and weather of an area. If you live close to the equator, the climate will be warmer, while moving north or south from the equator brings a cooler climate. Altitude, or how high one is above sea level, has a similar effect–the higher the elevation, the colder the climate.
Question 29
The equatorial regions receive rainfall throughout the year. The annual rainfall is generally about ________
A. 80 cms
B. 160 cms
C. 200 cms
D. 250 cms
View Answer
Answer: Option D
Explanation:
The equatorial regions receive rainfall throughout the year. The annual rainfall is generally about 250 cms.
Question 30
The lowest winter temperature in the northern hemisphere is of ________
A. Ottawa
B. Mexico city
C. Moscow
D. Verkhoyansk
View Answer
Answer: Option D
Explanation:
The lowest winter temperature in the northern hemisphere is of Verkhoyansk. Oymyakon and Verkhoyansk are the only two permanently populated places in the world that have recorded temperatures below -60.0° C (-76.0° F) every day of January.
Question 31
The mediterranean region specialises in fruit culture because ________
A. Hill slopes are best suited for cultivation of trees
B. Hill slopes are not favourable for food grain cultivation
C. The long dry summer favour drying and packing of fruits for export.
D. There is a demand of dry fruits
View Answer
Answer: Option C
Explanation:
The mediterranean region specialises in fruit culture because the long dry summer favour drying and packing of fruits for export.
Question 32
The driest spot on earth is in the Atacama desert, parts of which went without rain for years. The Atacama is in ________
A. Africa
B. Asia
C. Canada
D. South America
View Answer
Answer: Option D
Explanation:
The driest spot on earth is in the Atacama desert, parts of which went without rain for years. The Atacama is in South America. The Atacama Desert is one of the driest places on Earth. The Atacama is in the country of Chile in South America. In an average year, much of this desert gets less than 1 millimeter (0.04 inch) of rain! That makes it 50 times drier than Death Valley in California.
Question 33
The polar regions of the earth cannot support forest growth because ________
A. The rainfall is very low
B. The growing season is short in these areas
C. The ground is often frozen or snow or ice-covered
D. All the above factors
View Answer
Answer: Option D
Explanation:
The polar regions of the earth cannot support forest growth because The rainfall is very low, The growing season is short in these areas and The ground is often frozen or snow or ice-covered.
Question 34
The rainfall due to upward movement of air caused by convergence of cold air masses against warm air masses is called ________.
A. Cyclonic rainfall
B. Orographic rainfall
C. Frontal rainfall
D. Convectional rainfall
View Answer
Answer: Option C
Explanation:
When a warm front and a cold front converges, warm front rises over cold front and this causes rainfall which is called frontal rainfall.
Question 35
The removal of rock, layer by layer due to weathering is called ________
A. Block disintegration
B. Dellation
C. Exfoliation
D. Granular disintegration
View Answer
Answer: Option C
Explanation:
The removal of rock, layer by layer due to weathering is called Exfoliation. Rocks are generally poor conductors of heat. The effect of daily heating and cooling is confined to surface layers of rocks. The outer layer of rock is heated up and expands during the day while the inner layer of rock remains cool. The outer layers eventually peel off (like an onion skin), exposing the inner layers to the surface for further exfoliation.
Question 36
The temperature decreases towards poles, because ________
A. At poles the snow does not melt
B. The cold regions do not absorb sun rays
C. The movement of cold wind is towards poles
D. The sun rays falling per unit area are less at poles
View Answer
Answer: Option D
Explanation:
The temperature decreases towards poles, because the sun rays falling per unit area are less at poles. The amount of insolation received on the earth’s surface is not uniform everywhere. It varies according to the place and time. When the tropical regions receive maximum annual insolation, it gradually decreases towards the poles. Insolation is more in summers and less in winters.
Question 37
The Tropical grasslands are called
A. Pampas
B. Llanos
C. Savanna
D. Veld
View Answer
Answer: Option C
Explanation:
Savanna is the tropical grassland. It is characterised by widely spaced trees allowing the sunlight to reach earth surface which ultimately helps in growing grass.
Question 38
The tropical grasslands of Africa are known as ________
A. Steppes
B. Savannas
C. Pampas
D. Downs
View Answer
Answer: Option B
Explanation:
The tropical grasslands of Africa are known as Savannas. A savanna is a rolling grassland scattered with shrubs and isolated trees, which can be found between a tropical rainforest and desert biome. They are mostly located near the equator. The largest savanna is located in Africa. Nearly half of the continent of Africa is covered with savanna grasslands.
Question 39
The Tropical Rain forest type of climate is characterised by ________
A. Average rainfall of about 300 cm
B. Heavy rain and high temperatures throughout the year
C. Hot dry summer and mild wet winters
D. Hot summer and cool winters with about 100 cm of annual rainfall
View Answer
Answer: Option B
Explanation:
The Tropical Rain forest type of climate is characterised by Heavy rain and high temperatures throughout the year. Because tropical rain forests lie near the equator, the days do not get shorter in winter and longer in summer. A day has about 12 hours of sunlight throughout the year. The average rainfall in the rain forest is the highest for any ecoregion on Earth. The climate in tropical rain forests is constantly warm and moist.
Question 40
The tropical deciduous trees shed their leaves in summer because
A. Of the heat of the summer
B. The rainfall is inadequate
C. It prevents loss of moisture through transpiration
D. Deciduous trees shed leaves
View Answer
Answer: Option C
Explanation:
The tropical deciduous trees shed their leaves in summer because it prevents loss of moisture through transpiration. As this is a hot-dry season, the leaves get dry due to high temperature and deficiency of moisture causing these trees to shed their leaves.
Question 41
The Veld grassland of South Africa experiences ________
A. The Continental Savanna Climate
B. The Maritime Savanna Climate
C. The Steppe climate
D. The Tropical desert climate
View Answer
Answer: Option C
Explanation:
The Veld grassland of South Africa experiences the Steppe climate. A steppe is a dry, grassy plain. Steppes occur in temperate climates, which lie between the tropics and polar regions. Temperate regions have distinct seasonal temperature changes, with cold winters and warm summers.
Question 42
Tropical evergreen forests remain evergreen because ________
A. There is a thick undergrowth of bushes
B. They do not shed their leaves.
C. Shedding of leaves and simultaneous growth of new ones takes place throughout the year
D. While plants at one level shed their leaves, those at a higher level retain their leaves
View Answer
Answer: Option C
Explanation:
Tropical evergreen forests remain evergreen because shedding of leaves and simultaneous growth of new ones takes place throughout the year.
Question 43
What are the five main indicators of global climate change of our planet?
A. Sea level, rising temperature, rain, nitrogen
and Arctic ocean ice
B. Antarctica ice, oxygen, rain, drought and sea
level
C. Arctic ocean ice, carbon dioxide, global
temperature, sea level, surface ice
D. None of these
View Answer
Answer: Option C
Explanation:
Environmentalists observed that Arctic ice is melting or retreating at tremcndous rate leading to rising sealevel. This has happened due to increased concentration of CO? leading to green house effect. Also glaciers are diminishing in size. (This option is most appropriate when compared to other option)
Question 44
What could be the main reason / reasons for the formation of African and Eurasian desert belt?
1. It is located in the sub-tropical high pressure cells.
2. It is under the influence of warm ocean currents.
Which of the statements given above is/are correct in this context?
A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2
View Answer
Answer: Option A
Explanation:
The main reason for the formation of African and Eurasian desert belt is that It is located in the sub-tropical high pressure cells.
Question 45
What happens to tropical soils when the rain forest is cleared?
A. The soil improves to the extent that soluble nutrients are no longer depleted by the trees
B. There is little effect on the soil because of its depth of
C. Clearing interrupts the critical nutrient cycle and leads to soil leaching
D. The soils stabilise and become excellent for grain
View Answer
Answer: Option C
Explanation:
Clearing interrupts the critical nutrient cycle and leads to soil leaching when the rain forest is cleared. Soil leaching refers is the movement of nutrient elements from topsoil through the soil profile. Leaching causes significant nutrient losses, particularly in humid regions with high precipitation.
Question 46
Which country falls in all three natural regions : Hot desert, Mediterranean and Cool temperate type of climate?
A. Chile
B. Israel
C. Lebanon
D. None of these
View Answer
Answer: Option A
Explanation:
Chile falls in all three natural regions : Hot desert, Mediterranean and Cool temperate type of climate. Places with a tropical wet climate are also known as rain forests. These equatorial regions have the most predictable weather on Earth, with warm temperatures and regular rainfall.
Question 47
Which of the following are Tropical Grasslands ?
I. Campos
II. Pampas
III. Savanna
IV. Steppes
A. I and IV
B. I and III
C. II and III
D. I and III
View Answer
Answer: Option B
Explanation:
Campos and Savanna are tropical grassland. Campos refers to grasslands or pastures with a vegetation cover comprising mainly grasses and herbs; scattered small shrubs and trees are occasionally found, generally by the banks of streams. A savanna is a rolling grassland scattered with shrubs and isolated trees, which can be found between a tropical rainforest and desert biome. Not enough rain falls on a savanna to support forests. Savannas are also known as tropical grasslands.
Question 48
Which of the following is a tropical monsoon crop?
A. Wheat
B. Rice
C. Cotton
D. Maize
View Answer
Answer: Option B
Explanation:
India has three cropping seasons namely Rabi, Kharif, and Zaid. Kharif crops are also called monsoon crops because these crops are sown during the southwest monsoon season. Rice, maize, and pulses are the key Kharif crops.
Question 49
Which of the following regions gets no rainfall throughout the year?
A. The Equatorial Region
B. The Tundra Region
C. The Himalayan Region
D. The Mediterranean Region
View Answer
Answer: Option B
Explanation:
The Tundra Region gets no rainfall throughout the year. Rainfall and snowfall are generally slight due to the low vapor pressure of water in the chilly atmosphere, but as a rule potential evapotranspiration is extremely low, allowing soggy terrain of swamps and bogs even in places that get precipitation typical of deserts of lower and middle latitudes.
Question 50
Which of the following statements about convectional rainfall are true?
1. The areas of the world, having an equatorial type of climate, receive this kind of rainfall.
2. It is usually torrential and accompanied by thunder and lightning.
3. It is also known as 4 o'clock rain.
A. 1 and 2
B. 2 and 3
C. 1 and 3
D. 1, 2 and 3
View Answer
Answer: Option D
Explanation:
The following statements that are true about convectional rainfall are The areas of the world, having an equatorial type of climate, receive this kind of rainfall, It is usually torrential and accompanied by thunder and lightning and It is also known as 4 o'clock rain.
Question 51
Which one of the following characteristics is not found in the convectional rainfall ?
A. Drizzling
B. Lightning and thunder
C. Torrential rain
D. Afternoon rain
View Answer
Answer: Option A
Explanation:
Drizzling characteristics is NOT found in the convectional rainfall. Drizzle consists of very small raindrops, larger than cloud droplets, but smaller than normal raindrops. It usually occurs when updrafts in clouds are not quite strong enough to produce rain.
Question 52
Which one of the following characteristics is NOT found in the Mediterranean climate?
A. Temperatures range from 21°C in summer to 10°C or below in the winter
B. Off-shore trade winds blow in the summer
C. On-shore westerly winds blow in the winter bringing cyclonic rain
D. The annual rainfall ranges from 1500 mm to 2000 mm
View Answer
Answer: Option B
Explanation:
In the Mediterranean climate off-shore trade winds doesnot blow in the summer. In summer there is a dry, warm period. Due to the movement of the sun to the top of the tropic of cancer, a warm zone or low pressure region is built on the Mediterranean region and so rain bearing winds are not seen here. But offshore trade winds blow here which don't bring much precipitation.
Question 53
Which one of the following countries celebrates Christmas festival in summer season?
A. Australia
B. Canada
C. Mexico
D. Italy
View Answer
Answer: Option A
Explanation:
Christmas is celebrated in summer in Australia because Christmas is celebrated everywhere on 25 December, and that date in most of Australia is in the summertime. And, for Christians at least, Christmas is fundamentally about the birth of Christ whenever that may have occurred and not about winter.
Question 54
Which one of the following is the correct sequence of the climatic regions while going from Zaire to Netherlands?
1. Equatorial climate
2. Mediterranean climate
3. Hot desert climate
4. West European climate
A. 1, 3, 2, 4
B. 1, 4, 2, 3
C. 2, 3, 4, 1
D. 3, 2, 1, 4
View Answer
Answer: Option A
Explanation:
The correct sequence of the climatic regions while going from Zaire to Netherlands are Equatorial climate, Hot desert climate, Mediterranean climate. West and European climate.
Question 55
Which one of the following processes of weathering belongs to both mechanical and chemical weathering?
A. Crystallization
B. Exfoliation
C. Hydration
D. Carbonation
View Answer
Answer: Option A
Explanation:
Crystallization processes of weathering belongs to both mechanical and chemical weathering. Mechanical or physical weathering involves the breakdown of rocks and soils through direct contact with atmospheric conditions, such as heat, water, ice and pressure. Chemical weathering - process by which the internal structure of a mineral is altered by the addition or removal of elements.
Question 56
Which one of the following regions has Mediterranean type of climate?
A. Cape Town region of South Africa
B. Great Plains of North America
C. North-Eastern Australia
D. Southern Algeria
View Answer
Answer: Option A
Explanation:
Cape Town region of South Africa has Mediterranean type of climate. Cape Town has a Mediterranean-style climate: wet and cool winters, dry and warm summers. The weather in Cape Town is influenced by two currents: the warm Agulhas current from the Indian Ocean side and the cold Benguela current on the Atlantic side.
Question 57
Winter temperature ranging from -29° C to -40° C, summer temperature about 10° C, total annual precipitation about 25 cm. and low humidity. These characterise the climate.
A. Taiga
B. Tundra
C. Mountain
D. West European
View Answer
Answer: Option B
Explanation:
Winter temperature ranging from -29° C to -40° C, summer temperature about 10° C, total annual precipitation about 25 cm. and low humidity. These characterise the climate of Tundra type.