Green chemistry means such reactions that:

A gas that is not common component of photochemical smog is-

1. Ozone

2. Acrolein

3. Peroxyacetyl nitrate

4. Chlorofluorocarbons

Which one of the following statements regarding photochemical smog is not correct?

1. Carbon monoxide does not play any role in photochemical smog formation

2. Photochemical smog is an oxidising agent in character

3. Photochemical smog is formed through photochemical reaction involving energy

4. Photochemical smog does not cause irritation in eyes and throat

Which one of the following statements is not true?

1. Concentration of DO below 6 ppm is good for the growth of fish

2. Clean water would have a BOD value of less than 5 ppm

3. Oxides of sulphur, nitrogen and carbon arc the most widespread air pollutant

4. pH of drinking water should be between 6.5-8.5

Biosphere is

(1) In which individual interact to each other

(2) By which life originated

(3) The name of a bird

(4) Organic compound by which life diminishes

Which is not a renewable source

1. Sunlight

2. Coal

3. Water

4. Wind energy

Noosphere is synonyms of

(1) Environment

(2) Atmosphere

(3) Hydrosphere

(4) Stratosphere

When biosphere turns into human-dominated environment it is called

(1) Noosphere

(2) Troposphere

(3) Mesosphere

(4) Man sphere 

The living organisms on or around the earth constitute

(1) Biome

(2) Biosphere

(3) Community

(4) Biocoenosis

Biosphere refers to 

(1) Plants of the world

(2) Special plants

(3) Area occupied by living beings

(4) Plants of a particular area