The start from an are of high concentration to an area of low concentration until it's evenly spread out
Answer:
a
Explanation:
The ice cream melting is an example of thermal energy, because the heat of the sun is melting the ice cream
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Answer: they are used to measure and keep things precise during constuction
Explanation: because if you watch videos and look up info and research it tells you about their jobs and what they use for their jobs
Answer:
B
Explanation:
We have learned of a major population crisis in China. Whereas The united states of America has the slowest population growth.