Most earthquakes occur at depths of
A. 100-700 km.
B. greater than 100 km.
C. less than 100 km.
Answer: C
Environmental & Atmospheric Sciences
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Beneficial insects are used in agriculture to do all of the following EXCEPT
A. produce beneficial bacteria. B. pollinate flowers. C. eat pest weeds. D. prey on pest insects.
Environmental & Atmospheric Sciences
Which base is an important starting material in the manufacture of fertilizers?
A) LiOH B) Mg(OH)2 C) NaOH D) NH3
Environmental & Atmospheric Sciences
How do castellanus clouds form, and what do they indicate?
What will be an ideal response?
Environmental & Atmospheric Sciences
The most dangerous airborne particulates are those that are
A. Anthropogenic B. Small enough to be drawn into the lungs C. Produced in industrial settings D. Large enough to damage the skin and eyes E. Liquid
Environmental & Atmospheric Sciences