What is a potential ill effect of adding iron to ocean waters?

Explain how the theories of continental drift and sea floor spreading support the theory of plate tectonics.

At what depth do most earthquakes occur? 0 to 70 kilometers. 70 to 150 kilometers. 150 to 210 kilometers. greater than 210 kilometers

Some arctic tundra ecosystems receive as little precipitation as deserts but have much more dense vegetation.

Where is the majority of canada's oil found?

What occurs at a transform boundary? What are the landforms created at this boundary?

Some students confuse adaptation with adapting. Clarify the misconception.

List 4 sources of ocean pollution

Russia's population distribution is strongly influenced by ... a. the demands of world trade. b. its ethnic and religious diversity. c. the Pacific Ocean. d. its physical environment.

Which of the following was a contributing factor to the spread of the Depression around the world?

What determines the size of a mineral crystal formed from magma?