Problems with DDT and Endosulfan

Q. DDT was sprayed for mosquito control, but only birds and animals were the victims. Why weren't mosquitoes affected?

1. There wasn't sufficient DDT for all mosquitoes.
2. There were too many mosquitoes.
3. The mosquitoes developed resistance towards DDT.
4. DDT hastened the reproduction of mosquitoes.

Q. Spraying endosulfan for crops killed over 5, 000 people. Additionally, it caused physical deformities in the local residents. The courts banned endosulfan as a violation of human rights.

Identify the right that was violated.

1. Right to income
2. Right to information
3. Right to life
4. Right to education

Q. The government carried out on cashew crops.

1. DDT treatment
2. endosulfan treatment
3. ethanol treatment

Q. Endosulfan was used to treat cashew crops in the Kasargod district. What was the outcome of this?

1. Crops became pest-free
2. Crops developed resistance to endosulfan
3. The air and water were contaminated
4. The air and water were purified

Q. What treatment did the government carry out on the cashew crops in Kasargod in 1976?

1. DDT treatment
2. Endosulfan treatment
3. Phorate treatment
4. Sulphur treatment

Q. Study the two statements labelled as Assertion (A) and Reason (R).

A: DDT killed birds and animals.
R: DDT was sprayed for mosquito control.

Choose the correct option.

1. Both A and R are true, and R explains A.
2. R is true, but A is false.
3. Both A and R are true, but R does not explain A.
4. Both A and R are false.

Q. The environment can absorb all kinds of substances.

1. True
2. False