Multiple choice

As a plant grows taller and healthier, what happens to the soil in which it is planted.

  1. the amount of soil decreases

  2. the amount of soil increases

  3. the amount of soil does not change much

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Plants do not consume soil to build their mass; they use carbon from the air and water from the soil. Therefore, the amount of soil remains relatively constant.