Answer:
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Explanation:
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Hey There!
Here is your answer:
Your answer is that a experiments should be controlled because the experiment could go out of control which could harm or hurt someone.
Also the definition of a controlled experiment is a part of the experiment that's not touched.
Ex: Water is your controlled experiment that's because our not doing anything to the water.
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Hope this helps!
science can impact our lives with energy we use lots of it and yes I would choose a career in science because you can learn a lot from science like about the vaccines that are out etc basically this part is your opinion
Answer:
A square is a mathematical shape that has 4 sides and 4 corners. It has equal sides and is used for the graph paper squares or tiles.
C. Is incorrect because some cells don’t survive for more than half a century