Irrigation

Q.

Which of the following statements is false?

1. Plants contain 90% water.

2. Water causes transportation of nutrients.

3. Water is continuously supplied to a crop.

4. Water protects plants from frost.

Q. Why do plants need water?

1. All of these
2. They require water for germination
3. Nutrients required by plants are water soluble
4. Plants need water for mineral nutrition

Q. Which of the following statement is correct with respect to irrigation?

1. Supply of water to households
2. Removal of water from crops
3. Supply of water to factories
4. Channeling water for agriculture

Q. Which irrigation system is related with the following features:​
(I) It has perpendicular pipes with rotating nozzles on top.​
(II) It simulates rainfall.​

Q.

Select the major sources of irrigation from the list below.

1. Ocean, Water tank, Pool

2. Wells, Ponds, Canals

3. Seas, Lakes, Rivers

4. Oceans, Lakes, Ponds

Q. Identify the correct statement regarding harvesting.

1. Harvest marks the time when seeds have to be sown in a field.
2. Harvest marks the end of the growing cycle for a particular crop.
3. Harvest marks the time when manure needs to be added.
4. Harvest is the celebration for beginning of agricultural activities of a new season.

Q. Irrigation is the process of supplying water to crops at regular intervals.

1. True
2. False

Q. Select the major sources of water for irrigation.

1. Wells
2. Oceans
3. Rivers
4. Seas
5. Tubewells
6. Ponds
7. Canals
8. Dams

Q. Sprinkler system of irrigation is very advantageous because:

1. It helps the field to get water logged
2. It efficiently uses the water
3. It decreases the fertility of soil
4. It increases the evaporation of water

Q. Which amongst the given images correctly depicts a drip irrigation system?

1. 
2. 
3. 
4.