What is the most common type of rock found on the earth's crust

Why are shark population in decline worldwide?

Which statement best explains distribution of natural resources? people tend to settle in locations that have the resources they need for survival. some countries have resources that others lack, so trade between countries becomes vital. fossil fuels come from areas that have mountains and other areas that manufacture synthetic gas. areas with natural resources provide a higher standard of living and better quality of life.

Briefly describe in your own words the pros and cons of the changes people have made to the land in south florida.