Answer:
If we are watching the sky, we see the lightning before we hear the thunder. That is because light travels much faster than sound waves. We can estimate the distance of the lightning by counting how many seconds it takes until we hear the thunder. It takes approximately 5 seconds for the sound to travel 1 mile.
Explanation:
Viruses cannot reproduce. they instead copy themselves with the help of a host cell. a cell can reproduce and doesn’t need help from other cells
Answer:
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Explanation:
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B . Excessive commercial fishing
Reason: the other options are good things this is the only bad thing
Answer: The answer is (D) Hypothesizing
Explanation: You're supposed to plan the outcome of your experiments before performing it
