Which of the following is not a greenhouse gas?

Which of the following air pollutant reduces the oxygen-carrying capacity of blood to a large extent?

The constituent of polluted air which contributes in producing acid rain is:

The Kyoto Protocol is associated with one of the following. This one is:

Which of the following will be reduced in air in a city forest when a lot of dust and fly ash in emitted by a coal-based factory in the vicinity?

Which of the following disease cannot be caused by drinking of river water contaminated with untreated sewage?

Which of the following statement about ozone is correct?

Drinking water can be made absolutely safe by adding some:

The excessive use of one of the following in agriculture can cause the death of fish in a pond by oxygen starvation. This one is:

Which of the following is usually not a water pollutant?

Which of the following are used in electric water filters to kill all the harmful micro-organisms present in tap water and make it absolutely safe for drinking?

Which of the following is not an air pollutant?

Which of the following air pollutant is capable of preventing photosynthesis in plants?

One of the following does not contribute in producing acid rain. This one is:

Which of the following will reach the earth in greater amounts if the number of chlorofluorocarbons released into the air increases?