Question

62. Which of the following are the conditions that support the formations of deltas?
i) Shallow sea, adjoining the delta
ii) The coast should be preferably tide less.
iii) Coastal erosion
Choose the correct answer from the code below:

• A. a) i only
  
• B. b) iii only
  
• C. c) i and iii only
  
• D. d) i and ii only

Answer 1

The correct option is D d) i and ii only

D)

Explanation:

The following conditions favour the formation of deltas:

1. Active vertical and lateral erosion in the upper course of the river to supply large amount of sediments;

2. Tide less, sheltered coast;

3. Shallow sea, adjoining the delta;

4. No strong current at the river mouth which may wash away the sediments.