Correct Answer: (C)
6. What is a meander in the context of river morphology?
(A) A waterfall.
(B) A wide and deep river channel.
(C) A winding curve or bend in a river's course.
(D) A river delta.
Correct Answer: (C)
7. What type of waterfall is formed when a river flows over a hard rock layer and gradually erodes the softer rock underneath?
(A) Plunge waterfall.
(B) Cataract waterfall.
(C) Block waterfall.
(D) Cascade waterfall.
Correct Answer: (D)
8. Which of the following is NOT a factor that can contribute to the formation of a waterfall?
(A) Differential erosion.
(B) Volcanic activity.
(C) Uplift of the land.
(D) Sediment deposition.
Correct Answer: (D)
9. What is the term for the flat, fan-shaped area of sediment that is deposited at the mouth of a
river where it meets an ocean or sea?
(A) Waterfall.
(B) Canyon.
(C) Estuary.
(D) Delta.
Correct Answer: (D)
10. The Grand Canyon, one of the world's most famous canyons, was primarily carved by which river?
