DP Biology (first assessment 2025)

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Question 23M.1A.SL.TZ1.19

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Date May 2023 Marks available [Maximum mark: 1] Reference code 23M.1A.SL.TZ1.19
Level SL Paper 1A Time zone TZ1
Command term Question number 19 Adapted from N/A
19.
[Maximum mark: 1]
23M.1A.SL.TZ1.19

What is the main contribution of greenhouse gases to global warming?


A.  Absorbing long wave radiation, therefore retaining atmospheric heat

B.  Converting long wave radiation to short wave radiation

C.  Producing a hole in the ozone layer, therefore allowing more heat into atmosphere

D.  Reflecting short wave radiation, therefore increasing the atmospheric temperature

[1]

Markscheme

A

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