Question

1. what is one of the primary effects of river sedimentation?

a. development of mountain ranges
b. creation of fertile floodplains
c. formation of u - shaped valleys
d. formation of canyons

Explanation:

• Option a: Mountain ranges are formed by tectonic activities (like plate collisions), not river sedimentation.
• Option b: River sedimentation deposits nutrient - rich sediments during floods, which creates fertile floodplains suitable for agriculture.
• Option c: U - shaped valleys are formed by glacial erosion, not river sedimentation.
• Option d: Canyons are formed by river erosion (cutting through rock over time), not sedimentation.

Answer:

b. Creation of fertile floodplains