Question

Arrange the following incidents in sequential order in the context of man-
made global warming:
(A) The atmospheric concentrations of carbon dioxide and CH4 have increased
(B) Burning of fossil fuels and deforestation
(C) Gradual increase in the average temperature of the earth’s lower atmosphere
(D) Melting of polar ice with a resulting rise in sea level and coastal flooding
Choose the correct answer from the options given below:

• A. (C), (B), (A), (D)
• B. (A), (C), (B), (D)
• C. (B), (A), (C), (D)
• D. (C), (B), (D), (A)

Answer 1

The Correct Option is C

The chronological progression of events associated with anthropogenic global warming is as follows:

1. Fossil fuel combustion and deforestation (B): Human actions, specifically the burning of fossil fuels for power and clearing forests for agriculture or settlement, emit substantial quantities of greenhouse gases, such as carbon dioxide (CO2) and methane (CH4), into the atmosphere.
2. Elevated atmospheric concentrations of carbon dioxide and CH4 (A): Consequently, atmospheric levels of CO2 and CH4 escalate, intensifying the greenhouse effect and consequently trapping more thermal energy within Earth's atmosphere.
3. Progressive rise in the mean temperature of Earth's troposphere (C): The amplified greenhouse effect precipitates a gradual elevation in the average temperature of the planet's lower atmosphere, leading to what is commonly recognized as global warming.
4. Abnegation of cryosphere with a resultant increase in oceanic levels and littoral inundation (D): The elevated temperatures induce the liquefaction of polar ice masses, thereby causing sea levels to ascend. This phenomenon results in coastal flooding and associated ramifications for ecological systems and human habitations.

Therefore, the correct sequence is (B), (A), (C), (D).