Chapter - Irrigation

Question 1

What is the reason for irrigation (2)

Answer 1

• Because of a poor climate
• Lack of rainfall
• Fast growing population, more demand for food and water

Question 2

How much of Bangledesh is being irrigated (1)

Answer 2

5 million hectares

Question 3

How does irrigation help banglesdesh (2)

Answer 3

• Allows farmers to farm in dry season
• Increase yield

Question 4

How much of irrigation in Bangledesh is small local schemes

Answer 4

90%

Question 5

Disadvantages of irrigation (3)

Answer 5

• Too much irrigation leads to ground becoming waterlogged.

• Water used to irrigate soil evaporates in dry season, causes salts to form a hard layer within upper layers of soil.
• Water is often pumped at too fast a rate, wells empty up