Question

Read the statements given below.

Choose the combination of statements that indicate the need to irrigate crops.

• A. i and ii
• B. i, ii, iii
• C. i, ii, iii, iv
• D. i and iii

Answer 1

The correct option is A

i and ii

The correct option is A.

The explanation for the correct option:

1. Irrigation helps seeds germination and nutrient absorption.
2. There are three types of irrigation known as sprinkle, micro, and surface irrigation.
3. Irrigation helps to plant crops, maintain landscapes and improve disturbed soils in dry areas and during times of below-average rainfall.
4. The most common sources of water for irrigation include rivers, reservoirs, and lakes, as well as groundwater.

The explanation for the incorrect option:

Option A:

1. Irrigation protects crops from frosts.
2. This statement is incorrect.
3. It can be done by covering crops during adverse weather.

Option B:

1. Irrigation improves soil texture.
2. This statement is incorrect.
3. As soil textures can be improved by providing the soil with humus and plowing, not only by irrigation.

Option C:

All the statements are true about irrigation. But two of them do not suggest the need for irrigation.

Final Answer: Irrigation is needed particularly for seed germination and nutrient absorption.