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Question 18M.3.HL.TZ1.a

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Date May 2018 Marks available [Maximum mark: 1] Reference code 18M.3.HL.TZ1.a
Level HL Paper 3 Time zone TZ1
Command term State Question number a Adapted from N/A
a.
[Maximum mark: 1]
18M.3.HL.TZ1.a

A retreating glacier leaves an environment of lifeless glacial deposits, including sands and gravels. Retreating glaciers often offer suitable sites for primary succession.

State one abiotic factor that will determine the type of ecosystem in a succession.

[1]

Markscheme

temperature/precipitation/rainfall/minerals /pH of soils/light/humidity/wind/slope (in this specific example)

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