Which of the following indicates the main difference between a cloud drop and a raindrop?
A. shape
B. size
C. colour
D. nuclei
Answer: B
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A factory in the U.S. makes carpets. All of the waste materials are sent to the local landfill. The factory generates a large amount of heat but it is vented directly to the atmosphere. Which of these terms best describes the waste approach at this factory?
A. status quo B. resource exchange network C. industrial ecosystem D. biomimicry
In the 1900s, fuel efficiency in transportation greatly increased when engines were converted from
A) natural gas to coal and steam. B) oil to coal and steam. C) coal and steam to gasoline. D) natural gas to gasoline.
Deep focus earthquakes occur at a maximum depth of ________.
A. 100 km B. 670 km C. the Earth's center D. the core mantle boundary E. 550 km
How many gallons per minute can a tanker shuttle operation deliver without interruption?
a. a few hundred b. a few thousand c. zero d. several hundred