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Viefleur [7K]
4 years ago
9

Question 18 (1 point)

Geography
1 answer:
Setler [38]4 years ago
4 0

Answer:

d) Chemical composition of its outer regions

Explanation:

Spectroscopy is the study of spectral lines, it's an important part of studying the chemistry that goes on in stars and interstellar clouds, spectral lines can give relevant information because every atom or molecule gives off light at a specific frequency, thus, astronomers can look for gas containing a particular atom or molecule by tuning the telescope to one of the gas's characteristic frequencies. Therefore, we can know the chemical composition or a star's outer regions analyzing the spectral lines.

Even though the spectral shape of a blackbody continuum depends on the temperature of the object an there's a relationship between an object’s temperature and the peak of its spectrum, we don't consider this answer as correct because we are not measuring spectral lines but the continuum.

I hope you find this information useful and interesting! Good luck!

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Anna35 [415]

Answer:

Jordan river.

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3 years ago
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How are the equator and the prime meridian used on maps?
velikii [3]

Answer:

to provide a reference system

Explanation:

The equator and prim meridian used on maps provides a reference system for determining location and navigating the earth.

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3 years ago
A military complex in the arctic archipelago of franz josef land was recently unveiled by what nation?
mojhsa [17]
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The United States is a nation -state. How would you respond to this comment? One response should provide evidence to support the
IrinaVladis [17]

Support:

I agree with this comment. The United States is a nation, whether people like it or not. We have to work together against other nations in order to survive. The state that is saying this comment also agrees with it since it knows it has other states it has to work with. We can achieve goals easier and faster if we all communicate together as a nation.


Refute:

The United States is not a nation. We have wars and fight with each other. We are enemies and we must work alone as states. We must prepare for fight with other states in this country and we must prepare to win. If we work together as a nation, we could all win and that would not be the goal. We want to be the top and not let others rise with us.



Hope this helps! I wrote this on my own, so it is based on my opinion. It still answers the question though! Thanks for posting! :)

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What border separates Sonora and Chihuahua
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The border separates Sonora and Chihuahua is Natural boundary

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