Indiscriminate use of fertilizers have led to

The use of plastics has led to a number of environment-related problems. For this, which one of the following statements is correct?

Which one of the following is related to global dimming?

Methemoglobinemia is caused by the drinking of water contaminated with

The leakage of which of the following gases caused the Bhopal Gas Tragedy in 1984?

Which one of the following statements is true with regard to a greenhouse?