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dimaraw [331]
3 years ago
6

Why do astronomers think that the milky way is a spiral galaxy?

Physics
1 answer:
Nikolay [14]3 years ago
5 0

1) When you look toward the Galactic Center with your eye, you see a long, thin strip. This suggests a disk seen edge-on, rather than a ellipsoid or another shape. We can also detect the bulge at the center. Since we see spiral galaxies which are disks with central bulges, this is a bit of a top.

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True or false:<br> All of the rivers in the United States are closely monitored For pollution levels
Nutka1998 [239]

All of the rivers in the United States are not monitored closely for pollution levels.

The statement in the question is False

<h3><u>Explanation:</u></h3>

Not all rivers in the United States are closely monitored for their pollution levels. There are volunteers who take responsibility of checking water bodies such as lakes, rivers, streams etc. They take the next step required after finding a water body contaminated.

But to say that all the rivers receive the same amount of attention and action is incorrect. To ensure that all the rivers are clean and pollution free, it would require a lot of man power in the said department which would collect the water samples from all these rivers and send it to labs for checking the pollution level of the particular river. It can be said that the rivers which are situated beside an industrial site, close to a town, will be the priority for checking pollution levels as it would directly cause harm to a small set of population if the toxicity is at an increased level.

3 0
3 years ago
You have 30.0 L of gasoline. How many gallons is this? (1 L equals about 0.264 gallons).
il63 [147K]

Answer:7.92 gallons

Explanation:

6 0
3 years ago
All examples involve chemical energy except __________. A. working muscles using food. B. burning a candle. C. coasting downhill
navik [9.2K]
The one that does not involve chemical energy would be : C. Coasting downhill on a bike
This one requires physical energy, To be categorized as chemical energy, the bond of chemical compounds has to be released

Hope this helps
7 0
3 years ago
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Are stars classified using nebula ​
cluponka [151]
Yes but no Is it for a grade?
3 0
4 years ago
What does a switch in an electrical circuit do?
PolarNik [594]

Answer:

It allows electrons to flow from one part of the circuit to another

when it is closed.

Explanation:

hope this helps <3 !!

5 0
3 years ago
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