25 POINTS!

1. What is formed by weathering, erosion, and deposition?
A) Grasslands
B) Mountains
C) Sand Dunes
D) Volcanoes

2. What is mechanical weathering?
A) The breakdown of rock through decomposition of chemicals
B) The buildup of chemical deposits on the surface
C) The buildup of rock formations over time
D) The breakdown of rock through mechanical disintegration and physical stress

Respuesta :

number one is "sand dunes".
Number two is "the breakdown of rock through mechanical disintegration and physical stress."

1. A sand dunes is formed by weathering, erosion and deposition.

  • A sand dune means a landform which is composed of wind or water driven sand.

Therefore, the Option C is correct.

2. A mechanical weathering is the breakdown of rock through mechanical disintegration and physical stress.

  • It is also called physical weathering and involves the breakdown of rock into smaller pieces.

Therefore, the Option D is correct.

Read more about Weathering

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