What cause the death of stars？

Most stars take millions of years to die. When a star like the Sun has burned all of its hydrogen fuel, it expands to become a red giant then when it fully runs out it then dies

. When the core runs out of hydrogen fuel, it will contract under the weight of gravity.

Explanation:

Explanation:

1. A

2. B

3. D

4. C

5. Chiron is well known with the gods, as said, he was even helped by them. Chiron is has also done incredible things in his life, even impressed Heremes, a god, to top it off, Chiron trained Achilles, and used his knowledge of medicine to help Phoinex (Achilles mentor).

hypertrophic cardiomyopathy

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​The answer is: D. pollution and acid rain due to industry and factories in urban areas.

Africa is well known for its dry climate and high temperature, which is why problems regarding acid rain is less likely to happen to this area.

Countries with typically cool to cold climate and high number of manufactures/vehicles such as the Scandanavian area, eastern united states, and Southern Canada are the places where problems with acid rains would most likely occurs.

The Answer Is D
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