Question

When does primary succession occur?
A. After a farmer abandons his farm
B. After a forest fire burns down all the trees
C. After a glacier retreats leaving rock rubble behind
D. When a pond gradually fills in with organic matter and becomes a forest

Answer 1

Primary succession occurs after a forest fire burns down all the trees

Answer 2

An example of primary succession is the initial development of plant or animal communities in an area where no soil initially exists (such as caused by a lava flow following volcanic eruption or severe landslide that covered the land). The primary succession is important in pioneering the area to create conditions favorable for the growth of other forms of plants and animals.