Name any five atmospheric pollutants and mention their hazardous effects

What is chemotropism? Give one example. Name any two plant hormones and mention their functions.

Name any one gas pollutant that can pollute environment.

Mention the effects of force.

Mention the effects of heat?

Mention any one harmful effect of fungi .

Name any five hormones secreted by pituitary gland.

The effect to radioactive pollutants depends upon

Name three non - degradable pollutants .

Among pollutants which has the most lasting effect

Name any two free living bacteria that fix atmospheric nitrogen and increase nitrogen content in the soil.