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aev [14]
2 years ago
11

1. A population of 246 earthworms live in a 6 m2 garden. What is the population density? SHOW YOUR WORK.

Biology
1 answer:
NikAS [45]2 years ago
4 0

Explanation:

you just need to know that :

population density = no of ( what is asked) / land area.

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Answer:

C) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere.

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Electromagnetic waves do not require a medium to travel. they can travel through vacuum also. for example:- light wave is an electromagnetic wave and it can travel through vacuum also.

On the other hand, sound wave require a medium to travel. sound waves can not travel through vacuum.

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6 0
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