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Alik [6]
3 years ago
14

A main sequence star becomes a ____ after it uses up the hydrogen in its core.

Geography
1 answer:
xxMikexx [17]3 years ago
7 0
Secondary star after it uses up the hydrogen in its core
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Who many eras are there in the fourth eon
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Explanation:

The Phanerozoic eon is separated into three eras: the Paleozoic, Mesozoic, and Cenozoic eras

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3 years ago
When does a protostar become a true star?
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C) when nuclear fusion begins in the core

Explanation:

  • <u>The protostar is a main-sequence star that has a core temperature that exceeds abut 10 million K and is needed for the hydrogen to operate efficiently and the </u><u>length </u><u>of this process depends on nature and the stellar </u><u>mass</u><u>, as the huge massive star have a greater and bigger core and fusion takes fast. </u>
  • A protostar is also called as primitive star and represents the earliest phases of the process of the stellar evolution and takes place after it leaves form the main sequence star.
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3 years ago
How are Seattle and Bangkok different? Check all that apply. A. Bangkok is much larger than Seattle. B. Bangkok does not have a
grin007 [14]

Answer: The correct answers are: Bangkok is much larger than Seattle; and Bangkok is building skyscrapers much faster than Seattle.

Explanation:

Ap3x Approved

5 0
3 years ago
Based on the map, in which direction would you expect each of the following rivers to flow the Missouri River, the Colorado Rive
agasfer [191]

Hey there! I'm happy to help!

A great way to see the direction a river runs is to see the two endpoints of that river. Whichever one is higher will most likely determine the direction the river flows just due to gravity. If a river starts in a mountain and ends in a lake that is north of the mountain, you can expect that the river flows north and not south just due to gravity.

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<u>MISSOURI RIVER</u>

We see that the West end this river is in the Rocky Mountain area and the other end is in the plains/plateau area. The Rocky Mountains are much higher than plains, so that means that that is where the river starts, and it will be flowing away from that. We see that the direction it goes is generally East.

---------------------------------------------------------------------------------

<u>COLORADO RIVER</u>

The West End of this river is in the plateaus and highlands while the other is in the Rocky Mountains. The Rocky Mountains, the high point, at the East end of the river, so it is going to be flowing West due to gravity.

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<u>RIO GRANDE</u>

This river also starts in the Rocky Mountains and appears to flow down into the highlands and plains. Since the Rocky Mountains are at the North part of this river, it is going to be flowing South.

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Have a wonderful day and keep on learning! :D

5 0
2 years ago
Which social class controlled most of mexico before it gained independence from spain
nignag [31]
Spaniards were the ruling class in Mexico, and comprised of people born in Spain who moved there. They were the only class allowed to hold government positions

Creoles were people of Spanish descent who were born in Mexico, and were treated less then Spaniards.

Mestizos were people of both Spanish and Indian descent and were looked down upon by both the Creoles and the Spaniards
6 0
3 years ago
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