Correct option is C
Correct option: (c) Banks of streams
Explanation:
·
Riparian erosion refers to soil erosion occurring along
riparian zones, i.e., areas adjacent to rivers and streams.
· It is mainly caused by:
· Flowing water
· Fluctuating water levels
· Undercutting of stream banks
· Hence, erosion is most pronounced at the
banks of streams.
❌ Why other options are incorrect
·
(a) Clear cut forest land
· Leads mainly to
sheet and rill erosion, not riparian erosion.
·
(b) Harvested croplands
· Susceptible to surface erosion forms, not riparian-specific erosion.
·
(d) Places having excessive grazing
· Causes
gully or sheet erosion, not riparian erosion unless near streams.
�� Key Points
· Riparian zones = land–water interface
· Riparian erosion directly affects:
· Stream stability
· Water quality
· Aquatic habitats
✔️
Final Answer: Option (c)