Question

A circular shoe-shaped coral reef.
7817 mts an area drained by rivers and its
tributaries
A region which drains all the rain water into a
river
Formed due to erosional activity of rivers
a)Atoll
b)Basin
c) Catchment area
d)gorge/canyon
​

Answer 1

Answer:

it's answer is basin may be I am not sure

Answer 2

Answer:

1-a

2 - c

3 - b

4 - d

hope it helps