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castortr0y [4]
2 years ago
12

Heat left over from when the earth was formed about 4.6 billion years ago is one source of INTERNAL energy. What is the other so

urce?
Question 6 options:

the sun


the ocean


radioactive substances in the earth's interior layers
Chemistry
2 answers:
Vanyuwa [196]2 years ago
8 0

Answer:

the ocean

Explanation:

siniylev [52]2 years ago
4 0

Answer:

the gravity

Explanation:

i hope you help this answer

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Explanation:

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Explanation:

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6 0
2 years ago
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7 0
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The percent composition of calcium is ?
DochEvi [55]

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5 0
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