A biosphere is composed of 

1. Living organisms

2. Living organisms + Lithosphere

3. Living organisms + lithosphere + atmosphere

4. Living organisms + lithosphere + atmosphere + Hydrosphere

Which of the following is the non conventional source of energy

(1) Coal

(2) petroleum

(3) Electricity from nuclear power plants

(4) Solar radiations

The population of India is 15% of the world but its annual energy consumption is only

(1) 0.2%

(2) 2.0%

(3) 10%

(4) 25%

Petroleum resource is

(1) Renewable

(2) Non-renewable

(3) Synthetic & biodegradable

(4) Infinite & unconventional

The main aim of plant conservation is - 

(1) To conserve the necessary ecological activities and life-supporting systems

(2) To conserve species diversity and range of genetic material

(3) Both the above

(4) None of the above

Environmental Planing organization is

1. CSIR

2. CPHERI

3. ICAR

4. NEERI

Which will not cause any atmospheric pollution

1. Hydrogen

2. Sulphur dioxide

3. Carbon dioxide

4. Carbon monoxide

Which of the following is the main factor of water pollution

(1) smoke

(2) Industrial waste

(3) Detergent

(4) Ammonia

The main air pollutant among the following is : 

1. CO

2. $C{O}_2$

3. $N_2$

4. Sulphur

Which is more important for water pollution

(1) Sound

(2) $S{O}_2$

(3) Salts of arsenic

(4) Sewage