Wood is a renewable fuel
A. when it is harvested no faster than it is replenished.
B. because of the low price of processing.
C. because of its high net energy yield.
D. if it is taken from slow-growing trees that are large and burn easily.
E. when it is harvested exclusively from forests.
Answer: A
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In some areas of the Ogallala aquifer, water is being pumped
a. four times faster than it is being replenished b. at the same rate it is being replenished c. 10 to 40 times faster than it is being replenished d. It is not possible to determine this, since the aquifer is so far below ground. e. The Ogallala is not being pumped at this point in time due to a Federal court decision.
Volcanic domes grow from lava being injected into the interior of mounds of cooled lava and from the breaking out and moving down the flanks of
A) viscous lava flows. B) runny lava flows. C) basaltic lava flows.
Which of the following best describes energy collection and conversion in a tree?
A) Leaves collect and chlorophyll converts. B) Leaves convert and chlorophyll collects. C) Roots collect and leaves convert. D) Seeds collect and leaves convert.
To be rated a severe thunderstorm by the National Weather Service, the storm has to have at least one of the following: large hail with a diameter of at least three-quarters of an inch, surface wind gusts of 40 knots or greater, or produces a tornado
a. True b. False