Multiple choice

The soil water which is of greatest importance to the plant life is

  1. gravitational water

  2. capillary water

  3. hygroscopic water

  4. combined water

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

Capillary water is held in soil pores that plants can readily absorb through their roots. Gravitational water drains away quickly, while hygroscopic and combined water are bound too tightly to soil particles for plant use.