- Greenhouse gases (such as CO₂, methane, water vapor) are transparent to incoming solar radiation (shortwave). - The Earth's surface absorbs this radiation and re-emits energy as infrared radiation (longwave heat). - Greenhouse gases absorb this outgoing infrared radiation and re-emit it in all directions, including back towards the Earth's surface, thus trapping heat and warming the planet.
Greenhouse gases are known so as:
Asked in UPSC Geoscientist 2020 · Topic: Greenhouse Effect and Climate Change (Definition and Natural Greenhouse Effect)
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Answer: B. they act like a greenhouse on the surface of the planet.
More Environment and Ecology questions
- Naturally occurring green house gases keeps the Earth warmer nearly by:
- Which one of the following is not correct in the context of greenhouse effect?
- Carbon dioxide absorbs strongly in infrared region and its presence in atmosphere decreases the loss of heat from earth by radiations. This is called :
- Directions : The following five (5) items consist of two statements, Statement I and Statement II. Examine these two statements carefully and select the correct answer using the code given below. Statement I : 34. Global warming signifies the rise in global surface temperature. Statement II : The increase of concentration of greenhouse gases in the atmosphere causes the rise in global surface temperature.
- When heat rays are reflected from Earth, gases like Carbon dioxide, Nitrous oxide do not allow them to escape back to the space causing our planet to heat up. These gases are known as
- Consider the following statements :
- What is 'Green House Effect"?
- Without green house effect, the average temperature of earth surface would be