Is puerto rico part of the 52 united states

What is the process of denser crust sinking beneath less dense crust after collision called?

Which evidence originally supported Hess's idea of seafloor spreading in 1968? Younger rocks are closer to mid-ocean ridges. The destruction of crust occurs at deep-sea trenches. Oceanic rocks are pillow-shaped when formed.

How much oil is spilled daily

Which describes mid-oceanic ridges? A. transform plate boundary between oceanic plates B. divergent plate boundary in oceanic plates C. divergent plate boundary in a continental plate D. convergent plate boundary involving an oceanic plate

What does the presence of dinosaur footprints in an area where no dinosaurs bones were found suggest the area was once underwater dinosaurs were never in that area the climate was too hot for dinosaurs dinosaurs were at some time in the area

Describe the Great Barrier Reef. Why is this site considered one of the world's most important ecosystems?

The diameter of a circle is 5.5m. Find the area of the circle. Give the exact value

Which of the following clouds has the highest base? a. stratocumulus b. cirrocumulus c. altocumulus d. nimbostratus

What kind of map will show you where communist governments are located in the world?

Russia is located in a ___ biome