DP Biology (first assessment 2025)

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Question SPM.1A.SL.TZ0.2

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Date May Specimen-2023 Marks available [Maximum mark: 1] Reference code SPM.1A.SL.TZ0.2
Level SL Paper 1A Time zone TZ0
Command term Question number 2 Adapted from N/A
2.
[Maximum mark: 1]
SPM.1A.SL.TZ0.2

What is a consequence of the ability of water to form many intermolecular hydrogen bonds?


A.  Ice has a higher density than water and floats, providing habitats for fish-eating mammals.

B.  Light can pass through water, so algae can photosynthesise.

C.  Some small invertebrates can walk on water surfaces.

D.  Small amounts of energy are needed to change water from one state to another, so that evaporation rates and  condensation rates are rapid.

[1]

Markscheme

C

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