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Alla [95]
3 years ago
13

Waves are produced by _______________ and travels in all directions from the source.

Biology
2 answers:
QveST [7]3 years ago
7 0
Energy creates waves hope this helpes
8090 [49]3 years ago
4 0
Waves are produced by Earthquakes
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<u><em>Naturally acquired active immunity:</em></u>  It happens when someone is exposed to a live disease and gets the disease. The person then becomes immune as a result of the first immune response.

It's sort of like a fall and learn to get up for the body.

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It's like you're body has a personal guide telling it where and where not to step in order to not fall.

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