Which of the following is a cause of urbanization?

a. living in cities became more expensive than living in rural areas.
b. agricultural production became more efficient.
c. suburban homes became larger than urban homes.
d. paving over land changed the environment.

If water were a non polar molecule, how would its properties be different ? a.) water would be a much lighter molecule b.) water would be able to climb up inside plants c.)water would not be able to form hydrogen bonds d.) water would stick together much more strongly

What best explains the inability for life to exist in earth early atmosphere

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons