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ivann1987 [24]
3 years ago
7

A geologist finds a layer of rock that is made of medium-grained sands and is porous. What type of rock did the geologist find?

Biology
1 answer:
Verdich [7]3 years ago
8 0
The type of rock is Sandstone
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<span>Secondary Structure - refers to the coiling or folding of a polypeptide chain that gives the protein its 3-D shape. There are two types of secondary structures observed in proteins. One type is the alpha (α) helix structure. This structure resembles a coiled spring and is secured by hydrogen bonding in the polypeptide chain. The second type of secondary structure in proteins is the beta (β) pleated sheet. This structure appears to be folded or pleated and is held together by hydrogen bonding between polypeptide units of the folded chain that lie adjacent to one another.
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