Why does frost wedging cause rock to break into smaller pieces? Select one: 0 A,

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Why does frost wedging cause rock to break into smaller pieces? Select one: 0 A, water gets into cracks of rock and water expands upon freezing B. When frosted tree roots wedge into rock the rock becomes more lubricated o C. colder air is less dense so pressure is decreased on rock causing it to contra D. colder rocks are softer and easier to break What is the difference between physical and chemical weathering? Select one: O A physical weathering occurs to igneous and metamorphic rocks while chemical sedimentary rocks O B. physical weathering occurs in cold, wet environments and chemical weathering environments C. physical weathering breaks rocks into smaller pieces and chemical weathering materials O D. all of the above are differences How does the character of a rock influence weathering? Select one: O A fractures and other discontinuities create pathways for the entry of water into a ro more resistant to weathering B. rocks that are broken have more surface area and so weather much more slowly. C. rocks that are easily weathered and eroded generally form steep cliffs D. all of these

Explanation / Answer

Q...How does the character of a rock influence weathering

Ans...(B)....Rocks that are broken have more surface area and so weather much more slowly.

Q...What is the difference between physical and chemical weathering

Ans...(C)...Physical weathering breaks rocks into smaller pieces and chemical weathering materials

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