The diagram below shows a material being cycled between the living and nonliving environments.

which material is being cycled?

a
carbon dioxide

b
nitrogen

c
oxygen

d
water

the answer is

c. parental

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

the dna of humans and mice is almost 92% similar. this similarity indicates that . mice have a tail, while humans have a tailbone. the tailbone is a structure in humans.yes it's true.

instead of copying and pasting things off of tests or work done on computer which im sure you did, try and read over the question carefully