Question

which statement describes a biotic factor interacting with the environment?
○ water flows down a creek bed.
○ soil contains nutrients for growth.
○ deer graze through the grassland.
○ the sun emits solar rays that reach earth.

Explanation:

A biotic factor is a living organism in an ecosystem. We need to identify the option where a living organism interacts with its environment:

1. Water, soil nutrients, and sunlight are all abiotic (non-living) factors, so the first, second, and fourth options only involve abiotic components.
2. A deer is a living (biotic) organism, and grazing through the grassland (its environment) is an interaction between this biotic factor and the ecosystem.

Answer:

Deer graze through the grassland.