Environmental Issues

Acid rain is caused by increase in the atmospheric concentration of -

1. SO3 and CO
2. CO2 and CO
3. O3 and dust
4. SO2 and NO2

Eutrophication of water bodies leading to killing of fishes is mainly due to nonavailability of

1. light
2. food
3. essential minerals
4. oxygen

The UN conference of Parties on climate change in the year 2012 was held at:

1. Lima
2. Warsaw
3. Doha
4. Durban

Which of the following are most suitable indicators of SO2 pollution in the environment?

1. Conifers
2. Fungi
3. Algae
4. Lichens

Increase in concentration of the toxicant at successive trophic levels is known as:

1. Biomagnification
2. Biotransformation
3. Biodeterioration
4. Biogeochemical cycling

The UN Conference of Parties on climate change in the year 2011 was held in :

1. Peru
2. Qatar
3. Poland
4. South Africa

Which of the following is not one of the prime health risks associated with greater UV radiation through the atmosphere due to depletion of stratospheric ozone?

1. Increased liver cancer
2. Increased skin cancer
3. Damage to eyes
4. Reduced Immune System

High value of BOD (Biochemical Oxygen Demand) indicates that :

1. water is highly polluted
2. consumption of organic matter in the water is higher by the microbes
3. water is pure
4. water is less polluted

Rachel Carson's famous book "Silent Spring" is related to:

1. Population explosion
2. Pesticide pollution
3. Ecosystem management
4. Noise pollution

The zone of atmosphere in which the ozone layer is present is called :

1. Mesosphere
2. Stratosphere
3. Ionosphere
4. Troposphere