The most common pesticide used in India is

The term ‘bio-magnification’ refers to the

Which one is an effective plant insecticide

The infectious agents made up of $RNA$ only are

The first fungicide discovered for plant disease control was

Disadvantages of chemical agents are

$I.$ chemicals are toxic and harmful to human beings and animals

$II.$ chemicals pollute the environment and plants

$III.$ weedicides used to remove weeds also pollute the soil

Choose the correct option