- Statement I: Global warming refers to the long- term increase in the average temperature of the Earth's climate system, primarily observed as a rise in global surface temperature since the pre-industrial period. - Statement II: Greenhouse gases (like carbon dioxide, methane, nitrous oxide, etc.) trap heat (infrared radiation) in the Earth's atmosphere, creating a warming effect. An increase in the concentration of these gases enhances this trapping, leading to a rise in global surface temperature. This increase is primarily attributed to human activities.
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.
Asked in UPSC CDS 2 2017 · Topic: Greenhouse Effect and Climate Change (Definition and Natural Greenhouse Effect)
Show answer
Answer: A. Both the statements are individually true and Statement II is the correct explanation of Statement I
More Environment and Ecology questions
- 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
- Which of the following is considered to be the optimum concentration of carbon dioxide for natural balance in atmosphere?
- Which one of the following atmospheric changes takes place due to green house effect?
- You placed a car in an open parking area in a summer day. After a few hours, you noticed that the heat is trapped inside the car. This phenomenon is known as
- Which one of the following statements with regard to greenhouse effect is correct?
