plant roots grow into cracks in rocks
yes
because the roots of the plant break down rock (by forsing it 2 break)
By weathering.
It is called weathering.
roots penetrate into small cracks in rocks and they grow thy exert pressure on rocks breaking them
Sediment.
Unconformities in the rock layer. To expand: Eventually. The upper rocks have to be deposited on the original, eroded surface to create the uncomformity.
You smash a rock with a bigger rock
Emotional stress
Sediment
Sedimentation
erosion