GATE 2026 ES – Question 32
Which statements about global warming are correct? Select all that apply.
Practise this question in The GATE Grind →
Show answer and explanation
Correct answer: (B) Greenhouse gases absorb outgoing longwave terrestrial radiation.; (C) Global warming can cause sea-level rise.; (D) Carbon dioxide is a greenhouse gas.
Explanation
The greenhouse mechanism primarily concerns absorption and re-emission of terrestrial infrared radiation, not incoming solar shortwave radiation, so B is correct and A is false. Warming raises sea level through thermal expansion and loss of land ice, so C is correct. CO₂ absorbs infrared radiation and is a greenhouse gas, so D is correct. Select **B, C, D**.