$.........$ is an undesirable,high-intensity sound.

Leaf curling is caused by

Which of the following led to problems like waterlogging and soil salinity?

Prolonged water logging in an agricultural field is likely to create the problem of:

Which is the most widely used insecticide in the world?

Air pollutants:
$I.$ Cause injury to all living organisms.
$II.$ Reduce growth and yield of crops and cause premature death of plants.
$III.$ Affect the respiratory system of humans and animals.
Which of the statements given above are correct?