What type of material is often used to make impressions of tool marks?

a. cement mix
b. dental paste
c. porcelain clay
d. plaster of paris

a adaptation is when organism changes itself to fit the environment

ex. when its cold outside i wear a jacket

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desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."