Multiple choice general knowledge

In one gram of soil, about --million bacteria live in it

  1. 5

  2. 7

  3. 9

  4. 10

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

One gram of healthy soil contains approximately 10 million bacteria. Soil is incredibly rich in microbial life, which plays crucial roles in decomposition, nutrient cycling, and plant growth. The correct answer is 10 million (D).