Best answer: Which is an agent of mechanical weathering?

Which is an agent of mechanical weathering quizlet?

Water can cause mechanical weathering when rivers or ocean waves cause rocks to collide and scrape against each other. Ice can cause mechanical weathering when glaciers cause rocks to scrape against each other. Ice can also cause mechanical weathering when water gets in cracks in rocks, and then freezes and expands.

What are two mechanical weathering agents?

Mechanical weathering breaks down existing rocks and minerals without changing them chemically. Ice wedging, abrasion, and some actions of living organisms and humans are some of the agents of mechanical weathering.

Is Oxygen an agent of mechanical weathering?

Mechanical weathering breaks rocks into smaller pieces without changing their composition. Ice wedging and abrasion are two important processes of mechanical weathering. … Water, carbon dioxide, and oxygen are important agents of chemical weathering. Different types of rocks weather at different rates.

What are 5 types of mechanical weathering?

The 5 types of mechanical weathering include thermal expansion, frost weathering (or ice wedging), exfoliation, abrasion, and salt crystal growth.

What are chemical weathering agents?

Chemical weathering changes the composition of a mineral to break it down. The agents of chemical weathering include water, carbon dioxide, and oxygen. Living organisms and humans can contribute to chemical weathering.

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What are the 5 agents for chemical weathering?

Terms in this set (5)

  • water. dissolves rock when a rock or other substance mixes uniformly throughout it to make a solution.
  • oxygen. iron combines with this and water through the process, oxidation (rust)
  • carbon dioxide. …
  • living organisms. …
  • acid rain.

What are the agents of biological weathering?

the agents of biological weathering are : → humans , plants , wind , water , air , stars , animals ..