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melamori03 [73]
3 years ago
9

Which is not one of the main areas of earth science

Biology
1 answer:
shtirl [24]3 years ago
7 0

Astrology is not a main are of science



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Answer:

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The discovery of penicillin was accidental when he was studying the petridish of staphylococcus and he found that due to avoidance while the experiment, molds grew in the petridish.  The area around the mold was clear and clear rings without the bacteria were easily observed. This lead to the discovery of the penicillin compound.

Thus, Option-A is the correct answer.

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