The pesticides used in killing the acquatic pests (including insects) is

Composited manure is formed from

Which ingredient killed hundreds of people in Bhopal gas tragedy

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

Broad spectrum insecticide is