1.

An example of inorganic fertilizer is

2.

Living organisms which help to modify the physical and chemical composition of the soil are

I. earthworms.
II. lichens.
III. bacteria.

3.

Crop residue left on farms to conserve soil moisture are referred to as

4.

An important function of organic matter in the soil is to

5.

Terracing checks soil erosion by

6.

A dibber is used for

7.

Living organisms which help to modify the physical and chemical composition of the soil are

I. earthworms.
II. lichens.
III. bacteria.

8.

Nutrient required in large quantities by leafy vegetables is

9.

Crop residue left on farms to conserve soil moisture are referred to as

10.

Thinning out means

11.

Terracing checks soil erosion by

12.

Which of the following activities best describe soil conservation?

I. Ensuring presence of water in the soil.
II. Maintaining nutrient in the soil.
III. Practicing crop rotation on the soil.
IV. Protecting the structure of the soil.

13.

The earthworm is important to the farmer because it

14.

Organic manures are preferred to inorganic manures because, they are

15.

In which of the following processes is plant nutrient in the soil lost through gravity?

16.

Which of the following statements are functions of soil air?

I. It is for respiration of plant roots.
II. It is for respiration of soil fauna.
III. It is for seed germination.

17.

An example of soil micronutrient is