What soil order is formed primarily from volcanic ash?
A. Spodosols
B. Podosols
C. Aridisols
D. Andisols
E. Vertisols
D
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_______________________ is the only effective way to protect groundwater
a. pollution prevention b. community-based local clean up c. bioremediation d. sewage treatment e. stream restoration
People produce many kitchen wastes each day, such as discarded egg shells, orange and banana peels, and coffee grounds. Living at the edge of town, you have several options for waste disposal
Which of the following would be the most likely to prevent natural decay of your kitchen wastes? A) Collecting your kitchen garbage in small plastic bags and disposing of it in a large city landfill B) Collecting your kitchen garbage in paper bags and disposing of it in a large city landfill C) Spreading your kitchen wastes on the top of a garden D) Burying your kitchen wastes deep in your garden soil
On average, the beach zone spans the area
A) between high and low spring tides. B) from several meters above high tide to several meters below low tide. C) between high and low neap tides. D) from the high tide line during a spring tide to the low tide line during a neap tide.
In terms of area, what are the two largest countries in Sub-Saharan Africa?
a. South Africa and Ethiopia b. the Democratic Republic of Congo and South Africa c. Nigeria and Ethiopia d. the Democratic Republic of Congo and Chad e. Nigeria and Chad