The continental shelf is a gently sloping feature found at the edge of a continental landmass going seaward from the coast. Rivers that empty into the sea can produce currents that are strong enough to erode the material that builds the shelf. When this occurs channels or submarine canyons are formed. These canyons are deep and dark as no light can penetrate these regions. The canyons often lead out to sea towards the edge of the shelf.
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Just based on common sense, its either C or D. I would guess C but not 100% sure sorry.
Explanation:
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Heat is how hot an object is.
Temperature is how hot or cold and object is.
No. Look up what a notochord is, vertebrates cannot have a notochord during embryonic development, as all nutrients flow into the blood stream, or stomach. Notochords are in between the mouth, and stomach. Which would NOT be used during development
