Weathering breaks down and loosens the surface minerals of rock so they can be transported away by agents of erosion such as water, wind and ice. There are two types of weathering: mechanicaland chemical. Mechanical weathering is the disintegration of rock into smaller and smaller fragments.
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The answer is B and I need 20 characters so I am typing random words
Answer:
the first question answer is C and for the second one is D
Answer: Sea stars move using a water vascular system. Water comes into the system via the madreporite. It is then circulated from the stone canal to the ring canal and into the radial canals.
Explanation: The radial canals carry water to the ampullae and provide suction to the tube feet.
The answer is A - stores genetic information I think
