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Mars2501 [29]
3 years ago
10

What are stars and galaxy made of?

Chemistry
2 answers:
goldfiish [28.3K]3 years ago
4 0
What are stars made of? Basically, stars are big exploding balls of gas, mostly hydrogen and helium. Our nearest star, the Sun, is so hot that the huge amount of hydrogen is undergoing a constant star-wide nuclear reaction, like in a hydrogen bomb.

In a spiral galaxy like the Milky Way, the stars, gas, and dust are organized into a "bulge," a "disk" containing "spiral arms," and a "halo." Elliptical galaxies have a "bulge-shape" and a "halo," but do not have a "disk.


Hope it helped
kakasveta [241]3 years ago
3 0

  A. Younger stars and gaseous nebulae

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3 enzimas presentes en nuestro organismo e indique en que procesos actúan
lapo4ka [179]

Answer:

ATP asa, Helicasa, Proteasa, ARN polimerasa

Explanation:

Las enzimas son un tipo de biomoleculas que se corresponden con las proteinas.

Al momento de referirse a ellas, se utiliza la terminación asa.

ATPasa → Sintetizando ATP para el funcionamiento celular

Helicasa → Abre las hebras de ADN permitiendo el paso de la horquilla para el proceso de replicación de ADN.

Proteasas → Enzimas que degradan proteinas mal plegadas, rompen los enlaces peptídicos.

ARN polimerasa → Sintesis de ARN mensajero a partir de ADN en el proceso de la Transcripción. Se la puede conocer a veces, como primasa.

8 0
3 years ago
Methane has a heat of fusion of 0.84 kJ/mol and a heat of vaporization of 9.2 kJ/mol. Estimate the value for the heat of sublima
Umnica [9.8K]

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7 0
2 years ago
How much fencing material does fiona need in meters?
snow_lady [41]

is this a multiple choice question?

6 0
3 years ago
What is the frequency of the sinusoidal graph?
Arisa [49]

Answer:

For finding frequency, we need to first find the period of the graph.

The period of a sinusoidal graph is the time interval in which it repeats its pattern.

In the graph, we can see, after 1/period time, it repeats its pattern.

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Now we need to find its frequency 1/\pi /2

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This is the answer

i hope you pass the assignment

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8 0
3 years ago
In the preindustrial era, settlements were more likely to be near sources of surface water than in the industrial era.
Ksenya-84 [330]
True that in the preindustrial era, settlements were more likely to be near sources of surface water than in the industrial era. The main reason being that during the preindustrial era people were dependent mostly on irrigation. For irrigation people were dependent on surface water. This was the main and basic reason.
7 0
3 years ago
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