Question

In which two locations can primary succession occur?

1) a recently created volcanic island and a recently burned forest
2) a recently burned forest and a piece of land exposed by a retreating glacier
3) a piece of land exposed by a retreating glacier and an abandoned field
4) an abandoned field and a tropical rain forest

Answer 1

Primary succession can occur in a 1. recently created volcanic island and a piece of land exposed by a retreating glacier.

Step-by-step explanation:

Primary succession can occur in two locations: 1. a recently created volcanic island and a piece of land exposed by a retreating glacier. In a recently created volcanic island, the lava that flows into the ocean continually forms new land, and pioneer species like lichens and plants gradually break down the lava and contribute to soil formation.

In a piece of land exposed by a retreating glacier, the glacier scours the landscape down to the bedrock, removing any original soil and leaving exposed rock for pioneer species to colonize and eventually form soil.