Question

Which of the following does not directly cause erosion?

Group of answer choices

1. Lichen

2. Chemicals

3. Sun light

4. Ice

Answer 1

Lichen

Step-by-step explanation:

Most lichen are sealing off stone surfaces and can prevent erosion. Lichen can also exudate chemical weathering agents, which facilitate mineral neoformation, e.g., turning rock surfaces into soil.