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bazaltina [42]
3 years ago
8

Why were the rocks on the river bed smooth?

Biology
2 answers:
notsponge [240]3 years ago
8 0

because the water runs over them that, then makes them smooth.
JulijaS [17]3 years ago
4 0
The answer is actually the third one with the rushing water. The continuous flow of water down the stream gradually eroded away jagged parts of the rocks; this phenomena is actually what created the grand canyon. Over a long period of time, the flow of water can make lasting changes. 
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growth

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Damage to the ________ might cause problems with coordination and balance.
Nitella [24]

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8 0
3 years ago
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vladimir2022 [97]

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Retraction occurs in the scapula (Shoulder blades) and mandible (jaw). Dorsiflexion you see that happen in your foot. When you bring your toes closer to the shin. Supination is more on the forearm and foot, where you rotate it so your palms are facing forward (sole facing the other ankle for feet). Flexion is the movement of body parts where you bring them closer to each other at a joint (the angle between the two parts are lessened). Like when you bend your elbows to "flex" muscles.

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