What percent of the universe is dark matter?

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.

The meseta in spain is a a. navigable river b. castle c. coastal plain d.plateau