Which statement best describes raw sand?
O
A
a nonrenewable resource used to make glass and computer chips
B. a renewable resource used to make glass and computer chips
O
C
a nonrenewable resource used to make plant fertilizer
0
D. a renewable resource used to make plant fertilizer

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

the answer is yes

it has kinetic energy

reason

an object has kinetic energy when you stop the force carrying it, the object will stay in motion.

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