What causes hydrogen bonding between water molecules? covalent bonds between water molecules. difference in electronegaivity between the oxygen atom and hydrogen atoms. oxygen atoms contain more electrons than hydrogen atoms. ionic bonding.

I believe its A. Hope this helps !

it takes hundreds of years to become stable.

if you have another question lmk.

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation: