Q161
Which of the following best explain why the lower course of a river is sometimes choked with sediments? 1. The valley of a river is widest in its lower course. 2. The velocity of a river in its lower course is low. 3. The delta sometimes develops in a river's lower course. 4. Much of the river water is drawn for irrigation in the lower course.
A.
1, 2, 3 and 4
B.
1, 3 and 4 only
C.
1, 2 and 3 only
AnswerD.
2 and 4 only
Answer: Option C
Solution
Answer: Option C
Solution:
The lower course of a river is sometimes choked with sediments because the valley of a river is widest in its lower course, the velocity of a river in its lower course is low and the delta sometimes develops in a river's lower course.