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Dahasolnce [82]
2 years ago
5

How is atmosphere the source of life?

Geography
2 answers:
Lady bird [3.3K]2 years ago
8 0
Not only does it contain the oxygen we need to live, but it also protects us from harmful ultraviolet solar radiation. It creates the pressure without which liquid water couldn't exist on our planet's surface. And it warms our planet and keeps temperatures habitable for our living Earth.
aleksandrvk [35]2 years ago
3 0

Answer:

 it contains the oxygen we need to live

Explanation:

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From earth, a hydrogen source releases an emission line that has a wavelength of 410nm. observations have been made for the same
lubasha [3.4K]

The explanation for the differences in wavelength observed from earth and a distant star with a shift towards the red end of the spectrum is the Redshift- Doppler effect.

<h3>What is the Doppler effect?</h3>

The Doppler effect is the difference that occur between the frequency of a wave in relation to observer from the wave source.

The wavelength changes with change in the frequency.

<h3>How does the Doppler effect explain the redshift?</h3>

As an object moves away from Earth, the waves moves to the red end of the electromagnetic spectrum and becomes elongated. This results to the increase in wavelength.

Therefore, the explanation for the differences in wavelength observed from earth and a distant star with a shift towards the red end of the spectrum is the redshift-Doppler effect.

Read more on Doppler effect here:

brainly.com/question/4052291

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1 year ago
How would a sonar enable an underwater vessel to move through the ocean depths?
nalin [4]

Answer: Most submarines use sonar as a navigation aid. How would sonar enable an underwater vessel to move through the ocean depths? It would enable an underwater vessel to move through the ocean depths because it would tell the navigator how far away they are from the bottom, and if they are too close or too far.

Oceanographers study the ocean through sonar and submersibles. Oceanographers use sound waves(sonar) to find the location of objects or to communicate. The sound waves travel to the ocean floor then back, and oceanographers count how long it takes to find how deep the ocean is at that location. Oceanographers use that to make maps and profiles of the ocean floor. Oceanographers use submersibles to study the ocean depths. Submersibles help oceanographers make discoveries about the deep ocean.

Explanation:

8 0
2 years ago
What is big difference between Christmas in the northern hemisphere and Christmas in the Southern Hemisphere?
julsineya [31]

Answer:

hope this helps

Explanation:

Christmas celebrations in the Southern Hemisphere are much different then the celebrations that take place in the Northern Hemisphere. The heat of early summer has an impact on the way people south of the equator celebrate Christmas. In the Southern Hemisphere, the holidays fall when the days are warmest and longest.

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Actually, the answer is A. I just took this test and got it right.

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