________ crystallizes from an intermediate composition lava.
A. Basalt
B. Andesite
C. Composite
D. Gabbro
E. Rhyolite
Answer: B
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When people work much less than 8 hours per day, this is called ________
Fill in the blank(s) with correct word
Winds carry air from ________
A) areas of high temperature toward areas of low temperature B) areas of high pressure toward areas of low pressure C) areas of low pressure toward areas of high pressure D) areas of low temperature toward areas of high temperature
Ocean floor subducts under continents because
A) the ocean floor is made up of silica and magnesium and is more dense than continental material. B) the weight of the continents is so great that they push the ocean floor material downward. C) the ocean floor is made of silica and aluminum s and is heavier than continental material. D) the ocean floor has a lower density and therefore sinks more easily.
Pour a liter of water at 40°C into a liter of water at 20°C and the final temperature of the two becomes
A) less than 30°C. B) at or about 30°C. C) more than 30°C.