Physics
Physics, 20.12.2019 21:31, loxtin495

Read the paragraph below and answer the question that follows:
for most of their lives, stars fuse elemental hydrogen into helium in their cores. two atoms of hydrogen are combined in a series of steps to create helium-4. these reactions account for 85% of the sun’s energy. the remaining 15% comes from reactions that produce the elements beryllium and lithium. infer which element is the most common in a star such as our sun.
question 6 options:
a. hydrogen because it takes 2 hydrogen atoms to make helium
b. helium because it is constantly being made in the sun
c. beryllium because it accounts for 15% of the energy
d. lithium because it's smaller than beryllium

answer
Answers: 2

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Read the paragraph below and answer the question that follows:
for most of their lives, star...

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