DP Physics (first assessment 2025)

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Question 19M.2.SL.TZ2.7cii

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.2.SL.TZ2.7cii
Level SL Paper 2 Time zone TZ2
Command term Suggest Question number cii Adapted from N/A
cii.
[Maximum mark: 1]
19M.2.SL.TZ2.7cii
(cii)

Suggest a mechanism by which the additional intensity can be lost.

[1]

Markscheme

conduction to the air above

OR

«mainly» evaporation

OR

melting ice at the poles

OR

reflection of sunlight off the surface of the ocean ✔

Do not accept convection or radiation.

Examiners report

Many candidates didn’t understand this question and thought that the answer needed to be some form of human activity that would reduce global temperature rise.

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