Question 1. Fill in the blanks :
(a) In the first week of July is Van Mahotsav is celebrated.
(b) The chief crop of Rabi is wheat.
(c) Rice is the main crop of Kharif.
(d) The production capacity of earth has increased by using cycle of crops .
(e) Ponds are used for irrigation in Southern India.
Question 2. Tick (✓) the right and cross (✗) the wrong sentences :
(a) Rainfall is the oldest source of irrigation. ( ✓ )
(b) Wheat is a Kharif crop. ( × )
(c) Farming of Paddy is a sign of danger for Punjab. ( ✓ )
(d) Crops can be grown without water. ( × )
(e) Emphasis should be laid on variety of crops. ( ✓ )
Question 3. Tick (✓) for the correct answers:
(a) In which month is Van Mahotsav celebrated?
(a) June (b) July ( ✓ ) (c) August
(b) Which one of the following is the ancient source of irrigation?
(a) Tubewell (b) Well ( ✓ ) (c) Ponds
(c) What is the main source of irrigation in Punjab?
(a) Tubewells ( ✓ ) (b) Canals (c) Ponds
(d) Which crop consumes much water?
(a) Jowar (b) Bajra (c) Paddy ( ✓ )
(e) Which crop consumes less water?
(a) Sugarcane (b) Gram ( ✓ ) (c) Cotton
Question 4. Write the name of the ancient sources of irrigation.
Answer: Rain, well, canals and rivers are the ancient source of irrigation.
Question 5. Write the names of modern sources of irrigation.
Answer: Tubewells, ponds, canals, drip system and fountain system are the modern sources of irrigation.
Question 6. Write the name of two types of crops on the basis of seasons.
Answer:
Rabi crops – wheat, oats, gram, mustard.
Kharif crops- rice, jawar, bajra, jute, cotton.
Question 7. Write the names of much water consuming crops.
Answer: Rice, sugarcane and cotton are much water consuming crops.
Question 8. Write the names of less water consuming crops.
Answer: Gram (chick pea), bajra (pearl millet), Guar (cluster bean) etc. are less water consuming crops.
Question 9. What will happen without water?
Answer: Water is very essential for life. Life is not possible without water. Without water human beings, animals, plants etc. will die.
Question 10. What are the reasons of groundwater depletion?
Answer: Following are the reasons of lowering of the water level :
1. . Misuse and wastage of water.
2. Deforestation causes less rain.
3. All the Kutcha ground is being covered by cement, marble etc. So rain water cannot seep into the ground.
4. Crop of paddy consume more water.
Question 11. What are the suggestions to control the groundwater depletion?
Answer: 1. We should grow crops which consume less water.
2. We should plant more trees.
3. We should adopt rain water harvesting system.
4. We should adopt drip system and fountain system for irrigation.
5. More emphasis should be laid on the cycle of crops.
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