What property of an electron makes it possible to use electron microscopes?
A. They are electrically charged.
B. They have shorter wavelengths than visible light.
C. They can be generated with electricity.
D. They can be focused using smaller lenses.
E. none of the above
Answer: B
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What is the principal goal of beach nourishment?
A) to augment the sand supply so that engineered structures work more efficiently B) to maintain a positive beach budget and alleviate the need for engineered structures C) to keep jetties from accumulating so much sand that they fill in river channels D) to eliminate littoral transport
The troubled South Ossetia region lies in ________ Georgia
A) south B) northeast C) southwest D) north central
A zone where new crust is formed due to the separation of two plates is labeled a(n) _______________. (two or three words)
Fill in the blank(s) with correct word
Precipitation in desert areas is almost always ____
a. caused by cyclonic activity b. associated with the high sun season c. infrequent, unreliable, and intense d. caused by orographic lifting of cT air masses