What are some examples of weathering?

Answer 1

Mechanical and Chemical weathering

Mechanical weathering is the breakdown of rocks without a change in their chemical composition. Chemical weathering is the breakdown of rocks with a change in their chemical composition.

Mechanical weathering is caused by the following factors: a. temperature (exfoliation); b. frost action; c. organic activity (root-pry); d. gravity; and e. abrasion.

Chemical weathering is caused by the following: a. water; b. oxidation; c. carbonation; d. sulfuric acid; e. plant acid

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Answer 2

Jonathan Avila

Chemical weathering (e.g., acid rain on limestone), physical weathering (e.g., frost action breaking rocks), biological weathering (e.g., plant roots breaking apart rocks), and abrasion (e.g., rocks rubbing against each other by water or wind).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.