Choose from the following the worst form of marine pollution.
a. effects of oil in the oceans
b. slowly degrading chemicals
c. coastal mining booms
d. improperly disposed trash

Why do you think water is so important to living things

Molecular models of two different substances are shown below. in the molecule on the left, the oxygen atom pulls on electrons more strongly than the hydrogen atoms. in the molecule on the right, the two oxygen atoms pull on the shared electrons with the same strength. water molecule, h,o oxygen molecule, oz when the two substances are put in the same container, they do not attract each other. why does this happen? a. they both contain oxygen. b. one is polar and one is nonpolar. c . they are both polar. d. they contain different elements.

What organelle other than the nucleus houses dna in a eukaryotic cell?