Biology

B.Fertilization of surrounding soil

Explanation:

A primary ecological effect of a volcanic eruption is the fertilization of surrounding soil. When a volcano erupts, it releases ash, lava, and other volcanic materials, which are rich in minerals like potassium, phosphorus, and nitrogen. These minerals can enhance soil fertility, making it more suitable for plant growth once the ash settles and breaks down over time.

Here's why the other options are not correct:

A. Increase in global temperatures: Large eruptions can have...