Succession Answers

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4

How does soil form on an island that is made of cooled rock from a volcanic eruption?

A
Soil forms when parts of the lava cool into very small rocks and dust.
B
Soil forms from the constant movement of species in and out of the community.
C
Soil forms when lichens and mosses grow, break down rocks, and die.
D
Soil forms when large trees take over the community from small bushes.
5

Which type of succession will occur in this environment and why?

A
primary, because it is a newly exposed environment
B
primary, because it was destroyed by logging and fire
C
secondary, because there are some remains of the previous community
D
secondary, because pioneer species have begun breaking down rock
8

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Succession Answers — Science 7 B M12 2526 S2