Which of the following occurs in the cumulus stage of an ordinary cell thunderstorm?
A. Hail is common.
B. Thunder and lightning frequently occur.
C. Cool air near the ground rises.
D. Moist air rushes upward and forms an updraft.
Answer: D
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The surface that marks the top of the ground water is called the
A) water table. B) saturated zone. C) unsaturated zone. D) water layer.
Which of the following pairs of liquids are miscible in all proportions?
A) ethanol and water B) ethanol and oil C) gasoline and water D) none of these
How do natural levees form in a floodplain?
A. A cut bank deepens as a stream meanders. B. Alluvium is deposited on both banks of a channel. C. Higher landforms are left after lateral erosion. D. Deposited point bars grow on one side. E. Sediment is deposited at the mouth of a stream.
What must be done prior to making forcible entry into a fire building?
a. utilities must be controlled b. an "all clear" must be declared c. the fire attack team must be ready d. ventilation must be established