Geography
Answer
The Earth's atmosphere contains gases such as carbon dioxide, methane, nitrous oxide (N2O) etc. that allow the near infrared rays from the Sun to penetrate the Earth but do not allow the heat radiated by the heated Earth to penetrate back into space, thus, preventing the earth from becoming too cold at night. This phenomenon is known as greenhouse effect.
Due to the increase in the concentration of greenhouse in the atmosphere by human activities, Earth is warming up and there is a rise in the mean global temperature to a level where it affects the life on earth. In this way, greenhouse effect is leading to global warming.
Related Questions
Answer in one word:
(a) Gases used in some air-conditioners, refrigerators and spray-cans that can destroy ozone and trap the heat in the atmosphere.
(b) The outermost layer of the atmosphere that fades into outer space.
(c) The increase in the temperature of the earth due to air pollution.
(d) A form of oxygen that protects life from the ultraviolet rays of the sun.
State the major effects of climate change.
Name the major greenhouse gases and their sources.
How does global warming cause spread of diseases?