Geography
(i) What is the cause of ozone depletion?
(ii) State the impact of ozone depletion on human life.
Answer
(i) The causes of destruction of ozone layer are:
- Emission of Nitrogen Oxide by a large number of supersonic transport aeroplanes causes deterioration of ozone layer.
- Release of synthetic chemicals primarily Chlorofluoro-carbons(CFCs) into the atmosphere is the most important cause of depletion of ozone layer.
(ii) Following are the impacts of ozone depletion on human life:
- It will allow excessive radiation of ultraviolet rays which can render man and animal blind.
- It can cause crop damage,
- It can burn skin and cause cancer.
Related Questions
Draw a neat labelled diagram of the structure of the Earth's atmosphere.
State three ways in which oceans are important to us.
"Higher the latitude, lower is the temperature."
Justify the statement with an example.Give a reason for each of the following:
- The snow on the slope of Himalayas in Nepal melt faster than that on the slope towards Tibet.
- Tropical deserts have a large annual range of temperatures.
- Equatorial regions have low atmospheric pressure throughout the year.