Urban heat islands can cause an increase in pollution, which is very harmful to people’s health.
a. heat
b. ozone
c. runoff
d. water

Seed plants that lived during the carboniferous impact life on earth today because a. they are the ancestors of all plant life on earth. b. their remains formed coal, which is an important resource. c. they produced fossils that are used to date many geologic events. d. their presence caused oxygen levels to drop, allowing animals to evolve.

8. compare the education of a sparta boy and an athenian boy. (2 points)

The position on the earth in which a place can be found