Answer:

MAN

- Mechanical weathering is weathering caused by the breaking down of rocks by physical force without any change in the chemical nature of the rocks. Mechanical weathering is usually caused by extreme hot and cold temperatures. Water seeps into cracks in rocks, freezes, and expands, causing further breakdown of rocks.

PLANTS

-Mechanical weathering is usually caused by extreme hot and cold temperatures. Water seeps into cracks in rocks, freezes, and expands, causing further breakdown of rocks. ... Sediment is small pieces of rock, shell, and plant and animal matter that is moved and deposited by water, wind, or ice.

ANIMALS

- Biological weathering is weathering caused by plants and animals. Plants and animals release acid forming chemicals that cause weathering and also contribute to the breaking down of rocks and landforms.

WIND

- Forces like wind and water break down rocks through the processes of weathering and erosion. Weathering is the process that breaks down rocks. Many things cause weathering, including climate changes. Erosion breaks rocks down further and then moves them.

TEMPERATURE

-It is the result of physical forces such as the freeze-thaw cycle of water. Water trickles into joints and fractures in solid rock, freezes and expands. The expansion puts pressure on the surrounding rock and gradually widens the cracks. ... In biological weathering, living organisms speed up the process of rock breakdown.

WATER

- Flowing water can move rocks, causing them to rub together and wear down into rounded shapes. When plants grow in cracks in a rock, their roots can widen the cracks and force the rock apart. Rainwater fills small cracks in a rock. As the water freezes, it expands, widening the cracks and splitting .

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