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What is it?
weathering
Types of weathering
physical and chemical weathering
Give any 2 agents of physical weathering.
pressure, temperature changes, plant growth, animal action, moving water, wind, gravity
Give any 2 agents of physical weathering.
pressure, temperature changes, plant growth, animal action, moving water, wind, gravity
Explain ice wedging.
when water freezes and unfreezes , cracks widen and finally the rock breaks apart
Where do you see a lot of temperature changing between day and night?
In a desert
What is exfoliation?
When the rocks outer layers peel away slowly , due to pressure change.
How does animal action affect weathering?
They dig out deep rocks,soil and they undergo weathering.
Breaking down and wearing away of rock material by the mechanical action of other rocks is called as...
abrasion
Abrasion is caused by
moving water, wind, gravity
How does plant growth break a rock?
The roots of a plant grow in the cracks of a rock, put pressure on the rock and it breaks apart.
