Can someone give me 4 examples of physical weathering

Yes, sure!

1) Moving Water - Water, when running for a long period of time, can actually start to weather rocks.

2) Ice wedging - Yep, this can cause rocks to weather as well. Water, when being constantly frozen and unfrozen weathers the rock due to the fact that water is able to expand.

3) Plant Roots - Ah, these little nutrient grabbers can certainly weather rocks over periods of time.

4) Winds - Winds can certainly physically weather the rocks, and it's probably the most common way they do.

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A) it will stay on the table