The destruction of ozone by CFCs will allow which of the following harmful radiations from the Sun to reach the Earth?

Which of the following is not an air pollutant?

Which of the following is/are the sources of air pollution? a. Smoke emitted from homes by the burning of fuels. b. Exhaust gases emitted by motor vehicles. c. Smoke emitted by factories and thermal power plants.

When inhaled, ___________ combines with the hemoglobin of our blood and reduces blood's oxygen carrying capacity.

Which of the following is not a greenhouse gas?

Which of the following pollutants reacts with water vapour present in the atmosphere to form nitric acid, which eventually falls to the Earth in the form of acid rain?

Which of the following statements is/are false? a. Sulphur dioxide is produced by the burning of coal in factories and thermal power plants. b. Nitrogen oxides attack the breathing system and lead to lung congestion. c. Smog is a deadly air pollutant which is formed by the combination of smoke and fog.

Which of the following pollutants contribute in the formation of smog? a. Sulphur dioxide b. Nitrogen oxides c. Carbon monoxide d. Carbon dioxide

Which of the following statements is/are false? a. An unwanted and harmful substance that contaminates the environment is called a pollutant. b. The two main gases present in the air are oxygen and hydrogen. c. A substance becomes an air pollutant when it is present in the air in such concentrations which are high enough to have a harmful effect on the living and non-living things.

Which of the following is not a water borne disease that is caused due to the drinking of contaminated water?

Which of the following air pollutant covers the leaves of plants and trees and prevents photosynthesis?

Which of the following acids dissolve in rainwater and fall to the Earth in the form of acid rain? a. Sulphuric acid b. Oxalic acid c. Nitric acid d. Acetic acid

Which of the following pollutants is depleting the useful ozone layer of the upper atmosphere?

Which of the following statements is/are false? a. The slow corrision of marble of a monument by acid rain is known as 'marble cancer'. b. The greenhouse is a structure or building made of glass walls and glass roof in which the plants which need protection from cold weather are grown. c. The longer wavelength heat rays coming from the Sun can pass through the glass walls and glass roofs of a greenhouse and get trapped inside it.

Which of the following fuels cannot be used to control air pollution?

In an electric water filter, which of the following is used to kill all the harmful germs present in the tap water?