• Burrowing animals they dig on soil hence break it to small bits of rock particles.
• Large animals as they move over rocks they exert pressure causing them to break.
• Man activities e.g. mining.
• Plant roots penetrate through the rock cracks exert pressure on wall hence they break.
• Plants decay to produce organic acid which corrode with rock minerals.
Dominic Onsase answered the question on March 5, 2018 at 14:00
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