What texture is displayed by the igneous rock in this photograph?

A. glassy
B. porphyritic
C. vesicles
D. breccia
E. None of these.


Answer: B

Environmental & Atmospheric Sciences

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The speed of an airplane caught in a right-angle crosswind

A. remains unchanged. B. decreases. C. increases. D. cannot be estimated.

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The high speed needed to put a satellite in circular orbit is to

A. attain a path that matches Earth's surface curvature. B. get it above Earth's gravitational field. C. both of these D. none of the above

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This figure shows three blocks in water. Which of these materials is the least dense?

A. block 1 B. block 2 C. block 3 D. the water 4

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What precipitation type is typically caused by mountains or highlands?

a. convectional b. frontal c. orographic d. anticyclonic

Environmental & Atmospheric Sciences