Biosphere refers to 

(1) Plants of the world

(2) Special plants

(3) Area occupied by living beings

(4) Plants of a particular area

What is the correct sequence of atmospheric layers starting from earth

(1) Stratosphere, troposphere, mesosphere, thermosphere

(2) Troposphere, stratosphere, mesosphere, thermosphere

(3) Mesosphere, troposphere, stratosphere, thermosphere

(4) Thermosphere, mesosphere, stratosphere, troposphere

A biosphere is composed of 

(1) Living organisms

(2) Living organisms + Lithosphere

(3) Living organisms + lithosphere + atmosphere

(4) Living organisms + lithosphere + atmosphere + Hydrosphere

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

The main factor of water pollution is:

1. Smoke

2. Industrial waste

3. Detergent

4. Ammonia

The major contributor to water pollution among the following is- 

1. Sound

2. ${\mathrm{SO}}_2$

3. Salts of arsenic

4. Sewage

Which of the following atmospheric pollutants is not produced by the exhaust of motor vehicle in Delhi

(1) $S{O}_2$

(2) Hydrocarbon gases

(3) Fly ash

(4) CO