Tag: environmental changes

Ozone is a protective blanket that is present in the stratosphere which protects earth from harmful effects of UV radiations that are present in sunlight.

Chlorofluorocarbons and other halogenated compounds cause ozone depletion.

Ozone is a protective blanket that is present in stratosphere which protects Earth from harmful effects of UV radiations that are present in sun light.

Ozone holes are formed in Antarctica and these are due to special clouds that form in the stratosphere called polar stratospheric clouds. Clouds usually do not form in stratosphere, this can happen only at such low temperatures. These clouds accumulate pollutants resulting in formation of ozone holes. 

• Stratosphere is the region of atmosphere where ozone layer is present, hence ozone depletion occurs in stratosphere.
  
• Biosphere is the region of surface and atmosphere of earth occupied by living organisms, hence unrelated to the question.
• Atmosphere is a broad term which becomes irrelevant when already a specific option ie stratosphere, is given in the choices.
• Microsphere is a small particle which has a different environment than its surroundings, hence incorrect.

The Government of India in its efforts to combat climate change launched its Nationwide programme on 30th June 2008. It was called the 'The National Action Plan on Climate Change'. It was adopted to address the future policies and programmes for climate change mitigation and adoption. The NAPCC comprises of  8 missions to accomplish the goals.

The greenhouse is the body which allows the shortwave incoming solar radiation to come but does not allow the longwave outgoing terrestrial infrared radiation to escape. Carbon dioxide, water vapour etc are the main gases of the greenhouse. The amount of greenhouse gases is increasing day by day which causes the increase of the temperature of the earth. In this way, global warming mainly caused by greenhouse gases.

Global warming refers to a gradual rise in atmospheric and ground surface air temperature. Emission of Carbon dioxide is one of the primary cause of global warming. As this gas allows the shortwave incoming solar radiation but does not allow the longwave outgoing terrestrial infrared radiation to escape. Thus an increase of carbon dioxide gas also increases in temperature of the earth which causes global warming.

Secondary,

Methane and Nitrous oxide.

Carbon dioxide,