The factors which affect the number and the activities of soil micro-organisms include the following except
The factors which affect the number and the activities of soil micro-organisms include the following except
Explanation
Topography means the shape of the land surface. Soil organisms live inside the soil, not on top of hills or in valleys.
What matters to soil organisms is moisture, air, and acidity levels. These conditions directly affect whether bacteria and fungi can survive and multiply.
The shape of the land does not change conditions deep inside the dirt where organisms live.