Question

1. which of the following is an example of how an ecosystem may change due to a natural disturbance? a. a wildfire that removes thick brush, allowing seedlings to grow more rapidly with less competition b. agricultural runoff from a farm that increases the growth of plants in a nearby area c. an oil spill from a pipeline that kills all of the crustaceans in a bay d. an earthquake that startles the animals in a pond, causing them to hide momentarily

Explanation:

A wildfire is a natural disturbance. It clears thick brush, reducing competition for seedlings, which is a change in the ecosystem due to a natural event. Options B and C are human - caused disturbances, and option D is a short - term scare rather than a long - term ecosystem change due to a natural disturbance.

Answer:

A. a wildfire that removes thick brush, allowing seedlings to grow more rapidly with less competition