What would be true for acid rain?

1. Acid rain is caused by emissions of sulfur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids.
2. The pH of acid rain is most commonly below 4.
3. Acid rain has direct significant effects on human health.
4. Both the higher pH and lower aluminium concentrations in surface water that occur as a result of acid rain can cause damage to fish and other aquatic animals.

Subtopic:  Air Pollution |
 69%

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Awaaz Foundation is an Indian NGO working to especially control:
1. amniocentesis assisted female feticides
2. effects of pollution of our heritage monuments
3. noise pollution
4. emission of radioactively active gases

Subtopic:  Resource Utilisation & Maintenance |
 66%

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Catalytic converters can also contribute to environmental pollution by increasing the emission of:

1. Methane 2. Hydrogen cyanide
3. Particulate matter 4. Carbon dioxide
Subtopic:  Air Pollution |
 62%
From NCERT

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Which of the following are commonly used as a bacterial indicator of water pollution?

1. Coliforms 2. Shigella
3. Giardia 4. Salmonella

Subtopic:  Water Pollution |

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Hot wastewater discharged from industries into water bodies:

1.  increases the nutrient content of the water body
2.  decreases the BOD of water
3.  is considered a water pollutant
4.  is desirable as cool water is more damaging to aquatic life
Subtopic:  Water Pollution |
 63%

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Biomagnification can occur as a result of:

I:  Persistence
II:  Food chain energetics
III:  Low or non-existent rate of internal degradation or excretion of the substance
 
1. I and II only 2. I and III only
3. II and III only 4. I, II and III
Subtopic:  Water Pollution: I |
 59%

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Eutrophication of lakes would lead to:
1. Decreased biomass of phytoplankton
2. Increased dissolved oxygen levels in water
3. Decreased biodiversity
4. Increase in the aesthetic value of the lake

Subtopic:  Water Pollution: I |
 51%

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Identify the incorrect statement regarding the ecological impact of DDT:

1. It is a persistent organic pollutant.
2. As it is lipophilic, it bioaccumulates especially in predatory birds.
3. It can be metabolized to non-toxic forms by human beings.
4. It causes eggshell thinning in predatory birds.

Subtopic:  Water Pollution: I |
 71%

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Arcata Wildlife Sanctuary in Arcata, California is also a/an:
1. innovative sewer management system
2. tiger reserve
3. nuclear waste disposal site
4. ecological hotspot

Subtopic:  Green House Effect & Global Warming |
 67%

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Identify the incorrectly matched pair:

1.

International Day of Forests       

March 21

2.

World Water Day

March 22

3.

Earth Day

May 22

4.

World Environment Day

June 5

Subtopic:  Introduction to Pollution & Types |

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