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ozzi
3 years ago
15

can someone please help me ill mark brainliest and lots of points please help me someone that likes helping people please help m

ee thank you

Chemistry
2 answers:
ser-zykov [4K]3 years ago
4 0
(1) eyes without magnifying devices
AnnyKZ [126]3 years ago
3 0

Answer:

1) B and 2) D

Explanation:

when scientists refer to the naked eye, it is referring to the eye without any sort of magnifying device, such as a microscope. Algae blooms can result naturally or by human interference

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The Doppler. Effect indicates that the universe is expanding because
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Answer : The correct answer is option C.

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Astronomers have observed that light from the distant object in the universe is shifted towards the frequency of red color which indicates that those object are receding or moving away from the planet earth.This phenomena was termed as Red shift .Same thing goes for galaxies which are very far away from the planet earth.

Where as if galaxies were moving towards the the planet earth their light would have shifted toward the frequency of blue color termed as blue shift.

Hence, the correct answer is option C.

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