Question

Which of the following is a recently originated problem of the environment?

विकल्प

• Ozone layer depletion

• Greenhouse effect

• Global warming

• All of the above

Answer 1

All of the above

Explanation:

Due to unrestricted utilisation of natural resources and excessive emission of harmful gaseous pollutants into the environment, the quality of air has considerably deteriorated. The percentage of carbon dioxide in the atmosphere is said to have doubled since the industrial revolution when human beings started burning fossil fuels on a large scale. The increased amount of gases like CO₂ etc. has resulted in the increased greenhouse effect and hence global warming. The release of CFCs and other ozone depleting substances in the atmosphere has caused an ozone hole which was discovered in 1985 in Antarctica.