A metamorphic type of coal containing up to 98 percent carbon:a
archaeocyathid d. bituminous coal
b. ginkgo e. sphenopsid
c. anthracite
C
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Sustainable living means:
a. consuming only manufactured resources b. consuming resources at a level that Earth can sustain indefinitely c. consuming resources at a level to which Earth can easily adapt d. consuming no resources
In terms of the differences between valley sides and valley bottoms ________
A) bottoms tend to be at a higher altitude B) sides have lesser slopes than valley bottoms C) sides tend to take more area than valley bottoms D) sides commonly have "lips" or "rims" E) bottoms are the sites of interfluves
Evaluate how HIV/AIDS and gender inequalities might affect future development in Sub-Saharan Africa
What will be an ideal response?
The crust makes up approximately what percentage of Earth's entire mass?
a. 1% b. 10% c. 25% d. 50%