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Fed [463]
3 years ago
5

Which of the following is not a physical change? (4 points)

Biology
2 answers:
Crazy boy [7]3 years ago
6 0
Burning paper is a chemical change not a physical one. Hope this helped <span>
ノ◕ヮ◕)ノ*:・゚✧</span>

AnnyKZ [126]3 years ago
4 0
Chemical changes are when a new atomically bond is created or one is broken.
Physical changes are when nothing really changes, but they item changes form.
Melting ice is a physical change. The ice is still water, just not frozen.
Breaking glass is a physical change. The glass isn’t changing, its just in smaller pieces.
Filtering a mixture is a physical change. If you filter sand from water it’s still water and sand, just not together anymore.
 
Burning paper is a chemical change. When you burn the paper it is no longer paper, now it’s ash and carbon dioxide. 
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2. Small population size
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2 years ago
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There is a lot of heavy superstition surrounding the ingestion of genetically modified foods and some people believe that consuming foods modified by different DNA can effect their own. However, this is scientifically impossible as a person's DNA is not something that can be modified by anything as you are born with it and your DNA makes up your entire body. Almost every cell in your body contains at least some DNA, meaning that to modify it, every single cell in your body would have to change

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