Which type of pollution has seen the least improvement since environmental issues became important?
a. land
b. air
c. ocean
d. water
e. factory

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.

Building glycogen from glucose molecules is an example of what

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.