Pls i need this asap what is the function of the respiratory system?
A. to breathe
B. to break down food
C. to rid the body of waste
D. to transport materials in the body

What was bohr’s contribution to the planetary model

What would happen to a volleyball left outside in the winter? o o o o a. it would expand. b. it would lose air. c. it would shrink. d. it would explode.

Water undergoes a large change in density at 0 ∘ c as it freezes to form ice. calculate the percent change in density that occurs when liquid water freezes to ice at 0 ∘ c given that