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