Deforestation leads to an increase in the amount of CO2 in the air because the number of trees which consume CO2 is reduced. Humanactivities, thus, contribute to the accumulation of CO2 in the atmosphere. CO2 traps heat and does not allow it to escape into space. As a result, the average temperature of the earth’s …
Global WarmingA Serious Threat!Global warming can cause sea levels to rise dramatically. In many places, coastal areas have already been flooded. Global warming could resultin wide ranging effects on rainfall patterns, agriculture, forests, plants and animals. Majority of people living in regions which are threatened byglobal warming are in Asia. A recent climate change report …
v A part of the reflected radiation is trapped by the atmosphere. The trapped radiations further warm the earth. If you have seen a greenhouse in a nursery or elsewhere, recall that the sun’s heat is allowed to get in but is not allowed to go out. The trapped heat warms the green house. The …
The Taj MahalOver the past 2 decades, India’s most famous tourist attraction, Taj Mahal located in Agra , has become a matter of concern. Experts have warned that pollutants in air are discolouring its white marble. So, it is not only living organisms that get affected by polluted air but non-living things like buildings, monuments …
chlorofluorocarbons (CFCs) which are used in refrigerators, air conditioners and aerosol sprays. CFCs damage the ozone layer of the atmosphere. The ozone layer protects us from harmful ultraviolet rays of the sun.
chlorofluorocarbons (CFCs)
a thick fog-like layer in the atmosphere, especially during winters. This is smog which is made up of smoke and fog. Smoke may contain oxides of nitrogen which combine with other air pollutants and fog to form smog. The smog causes breathing difficulties such as asthma, cough and wheezing in children.
The substances which contaminate the air are called air pollutants. Sometimes, such substances may come from natural sources like smoke and dust arising from forest fires or volcanic eruptions.Pollutants are also added to the atmosphere by certain human activities.The sources of air pollutants are factories, power plants, automobile exhausts and burning of firewood and dung …
Air pollution is the contamination of air by impurities which may have a harmful impact on the living organisms and the non-living components.
