HI there!!!!!!
It would probably be the heart, brain or our muscles; they are constantly working !
Answer:
Dry air is a mechanical mixture of nitrogen, oxygen, argon and several other gases in minor amounts.
Explanation:
Answer:
true
Explanation:
Coal is a non-renewable energy source because it takes millions of years to form.
Answer:
but no the answer is spine which can also be called vertebral column so is B
2
hope i helped my dewd <3
