What is the implication for the composition of Earth's interior if iron represents almost 35 percent of the entire Earth's composition, but less than 6 percent of Earth's crust?
What will be an ideal response?
The rest of Earth besides the crust must be very rich in iron.
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Why is Afghanistan referred to as the "Graveyard of Empires", and what are three empires Afghanistan has "laid to rest"?
The largest number of refugees to come to Germany in recent years are from
A. Iraq B. Russia C. South Africa D. Bosnia-Herzegovina
Which of the following fish species would be the best indicator of clean, well-oxygenated water?
A. Rainbow trout B. Carp C. Sunfish D. Catfish E. Largemouth bass
Which of the following demonstrates the greatest stewardship in addressing the production and disposal of MSW?
A) Promote strategies that reduce the generation of MSW B) Compost organic components of MSW C) Recycle MSW as much as possible D) Promote strategies that reduce MSW, compost organic components, and recycle as much MSW as possible