Question 1
Acid rain does not cause any environmental damages.
A. TRUE
B. FALSE
View Answer
Answer: Option B
Explanation:
Acid rain cause many environmental damages. It affects the plants by removing nutrients from the soil. It affects plants and animals life in ecosystem. It affects the food chain. It damages buildings, vehicles and other systems made from stone or steel.
Question 2
How can we control acid rain which is causing due to the exhaust fumes on the atmosphere by cars?
A. By burning more fuels
B. By using old engine vehicles
C. By using ignition
D. By using catalytic converters
View Answer
Answer: Option D
Explanation:
In catalytic converters, the gases are passed over metal coated beds that convert harmful chemicals into less harmful ones. These are used in cars to reduce the effects of exhaust fumres on the atmosphere.
Question 3
Natural sources also cause acid rain.
A. TRUE
B. FALSE
View Answer
Answer: Option A
Explanation:
The major natural causing agent for acid rain is volcanic emission. Volcanoes emit acid producing gases to create higher than normal amounts of acid rain or any other form of precipitation such as fog and snow.
Question 4
The Taj Mahal in India is affected by____________________
A. Fog
B. Acid rain
C. Water pollution
D. Spoil Pollution
View Answer
Answer: Option B
Explanation:
Acid rain and dry acid deposition damage buildings. The acid corrodes the materials causing extensive damage and ruins historic buildings. For instances the Tai Mahal in India have been affected by acid rain.
Question 5
What are two acids formed when gases react with the tiny droplets of water in clouds?
A. Sulphuric acids and nitric acid
B. Hydrochloric acid and nitric acid
C. Sulfurous acid and acetylsalicylic acid
D. Sulphuric acid and hydrochloric acid
View Answer
Answer: Option A
Explanation:
The gases of nitrogen oxides and sulphur dioxide react with the tiny droplets of water in clouds to form sulphuric and nitric acid. The rain from these clouds falls as very weak acid known as ‘Acid rain’.
Question 6
What is the nature of acid rain?
A. Withstanding
B. Protecting
C. Corrosive
D. Balancing
View Answer
Answer: Option C
Explanation:
The nature of acid rain is corrosive. This corrosive nature of acid rain produces many forms of environmental damages. It affects rivers, vegetation, soil and organisms. Acid rain is known to cause widespread environmental damage.
Question 7
What is the result of acid rain when it falls into water bodies?
A. The water becomes acidic
B. The water becomes pure
C. The water increase its nutrients value
D. The water increase its level
View Answer
Answer: Option A
Explanation:
When acid rain that falls or flows as water to reach rivers, lakes, wetlands and other water bodies causes the water in them to become acidic. This affects plant and animal life in aquatic ecosystems.
Question 8
When was the “Clean Air Act” in United States came into force?
A. 1950
B. 1960
C. 1970
D. 1980
View Answer
Answer: Option C
Explanation:
In the United States, reduction in acid deposition stem for the Clean Air Act of 1970 and its Amendments in 1990. This Amendments begun by the regulating of coal fired power plant emission. This development significantly reduced the Sulphuric dioxide in United States.
Question 9
Which is the most acidic in pH scale?
A. 0
B. 7
C. 10
D. 14
View Answer
Answer: Option A
Explanation:
Acidity is measured using a scale called the pH scale. This scale goes from 0 to 14. 0 is the most acidic and 14 is the most alkaline. Acid rain is much weaker than the string acids, it’s never acidic enough to burn the skin.
Question 10
Which of the following is the best way to reduce acid rain in soil?
A. By adding sulphur to the soil
B. By adding nitrogen to the soil
C. By adding oxygen to the soil
D. By adding limestone to the soil
View Answer
Answer: Option D
Explanation:
When acid rain affects the soil it’s difficult to prevent soil from acid rain but powered limestone can be added to the soil by a process which is known as liming to neutralize the acidity of the soil.
Question 11
Which of the following way acid rain affects the plants?
A. By nourishing the nutrients from the soil
B. By increasing the nutrients from the soil
C. By removing nutrients from the soil
D. By balancing the nutrients in the soil
View Answer
Answer: Option C
Explanation:
Acid rain indirectly affects plants by removing nutrients from the soil during which they grow. Acid rain dissolves and washes away all the vitamins in the soil which are very much essential for plants.
Question 12
Which one of the following cause acid rain?
A. Water pollution
B. Soil pollution
C. Air pollution
D. Noise Pollution
View Answer
Answer: Option C
Explanation:
Acid rain is mainly caused due to a result of air pollution. When any type of fuel is burnt, lots of different chemicals are produced. Some of the gases react with tiny droplets of water. This rain from clouds forms acid rain.
Question 13
Which one of the way can prevent acid rain?
A. Increase the emission of sulfur dioxide and nitrogen oxides
B. Decrease the emission of sulfur dioxide and nitrogen oxides
C. Increase in the emission of hydrochloride and phosphate
D. Decrease in the emission of hydrochloride and phosphate
View Answer
Answer: Option B
Explanation:
One of the ways to stop the formation of acid rain is to decrease the emission of sulfur dioxide and nitrogen oxides into the surroundings. This may be achieved by using much less energy from fossil fuels in power plants and in industries.
Question 14
Who was the first to use the phrase “Acid Rain”?
A. Robert Angus Smith
B. Ernest Flower
C. Elmer Joseph Clark
D. Christ Ralph
View Answer
Answer: Option A
Explanation:
The phrase acid rain was first used in 1852 by Robert Angus Smith, who was a Scottish chemist. In his investigation of rainwater chemistry near industrial cities in England and Scotland he termed the phrase acid rain for the very first time.
Question 15
Below which of the following pH is rain regarded as ‘acid rain’?
A. 7
B. 7.3
C. 5.6
D. 6
View Answer
Answer: Option C
Explanation:
Though the pH of neutral water is 7, rain water is acidic due to mixing up with atmospheric carbon dioxide and is said to have a 5.6 pH. Hence acid rain has a pH less than 5.6.
Question 16
Glass containers are generally not preferred for sampling rain water. Why?
A. Glass containers are expensive
B. Glass containers are not easy to maintain
C. Glass containers affect the pH of the rain water
D. All of the mentioned
View Answer
Answer: Option C
Explanation:
Glass containers can alter the pH of the rain water and hence not suitable to use for sampling rain water.
Question 17
The acidic air pollutants reach the Earth’s surface because of wet deposition only.
A. True
B. False
View Answer
Answer: Option B
Explanation:
The acidic air pollutions get deposited on the Earth’s surface due to both wet and dry deposition. Wet deposition occurs due to rain fall and moist weather, whereas dry deposition occurs due to mixing of acidic pollutants and dust.
Question 18
What does the term “liming” mean?
A. Application of magnesium and calcium rich substances to soil
B. Erosion of calcium carbonate(lime) zones in soil
C. Excessive growth of lemon trees in acid rain prone regions
D. None of the mentioned
View Answer
Answer: Option A
Explanation:
Liming is done to neutralise soils that become acidic due to excessive acidic rainfall, but is known to have harmful impact on plant life.
Question 19
What is the pH required for the survival of aquatic animals and plants?
A. 7
B. 7.5
C. 6.5
D. 4.8
View Answer
Answer: Option D
Explanation:
Aquatic organisms require a moderately acidic pH of 4.8 and if it goes below this level, it proves to be detrimental to their survival.
Question 20
Which of the following gases are main contributors to acid rain?
A. Carbon dioxide and carbon monoxide
B. Sulphur dioxide and carbon dioxide
C. Sulphur dioxide and nitrogen dioxide
D. Sulphur dioxide and nitrous oxide
View Answer
Answer: Option D
Explanation:
Sulphur dioxide and nitrogen dioxide have a high tendency to mix with water to form sulphurous/sulphuric acid and nitric acid.
Question 21
Which of the following gases is responsible for the yellowing of the Taj Mahal?
A. Organic carbon
B. Black carbon
C. Brown carbon
D. All of the mentioned
View Answer
Answer: Option D
Explanation:
Organic carbon, black carbon and brown carbon (generated due to biomass combustion) are light absorbing particles responsible for the yellowing of the Taj Mahal.
Question 22
Which of the following is/are natural contributor(s) to sulphur dioxide in the atmosphere?
A. Sea sprays
B. Volcanic eruption
C. Decaying vegetation
D. All of the mentioned
View Answer
Answer: Option D
Explanation:
Though primary natural contributor to sulphur dioxide is volcanic eruptions, even sea sprays and decaying vegetation release sulphur dioxide to the atmosphere.
Question 23
Which place in India receives the highest annual rainfall?
A. Mawsynram
B. Cherrapunji
C. Siju
D. Phyllut
View Answer
Answer: Option A
Explanation:
Mawsynram currently holds the record for the highest annual rainfall (11.873 km) in our country.
Question 24
Who discovered the phenomenon of acid rain?
A. George Brown
B. James T. Stewart
C. Robert Angus Smith
D. Charles David
View Answer
Answer: Option C
Explanation:
The phenomenon of acid rain was discovered by Robert A. Smith during the industrial revolution.