7
QuizMultiple Choice

Succession

Question 7 • (AG Q1) Environmental Science: 26-27 (EMulac)

Which of the following is the most likely cause of succession in ecosystems?

Answer
A
arrival of new species
B
rain
C
loss of an animal species
D
wildfires

Explanation

Wildfires can clear vegetation and change soil and habitat conditions, creating open space for new communities to grow. The gradual replacement of one community by another is ecological succession, so “wildfires” is the most likely cause. Rain is a normal environmental condition and does not typically trigger succession by itself.

AI-written and checked against the verified answer.

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