What was the main technique used to study the solid surface of Venus?
A. visible-light telescopes
B. photographs taken at different times of the day
C. small rovers that drive around on the planet
D. radar images
E. None of these choices are correct.
Answer: D
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The island of Java is an example of a volcanic island associated with volcanic activity at a ________
A) hotspot B) island arc C) mid-ocean ridge D) transform fault E) rift valley
What is the depth for the brittle-ductile transition?
a. 1~2 km b. 4~5 km c. 9~10 km d. 10 ~ 15 km
Hydroelectric plants using impoundments generate electricity when water is released from a ________
A) turbine B) pipe C) generator D) dam E) powerhouse
Which of the following pressure systems reside within the source region for mP air masses?
A) Bermuda high and Pacific high B) Bermuda high and Icelandic low C) Aleutian low and Icelandic low D) Aleutian low and Pacific high