The source of the Sun's energy is ________
A) nuclear fission
B) heat of contraction
C) potential energy
D) chemical burning
E) nuclear fusion
E
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EPA studies have found that 70% of all U.S. hazardous waste ____ have no liners and could threaten groundwater supplies.
A. sanitary landfills B. deep-well disposal sites C. open pit landfills D. storage ponds E. storage tanks
The forecast funnel outlines the steps used by forecasters to steer their attention from ____ scales and from ____ time frames
A) ?large to smaller; long to shorter B) large to smaller; short to longer C) ?small to larger; short to longer D) ?small to larger; long to shorter
Carbon dioxide makes up 21% of the air we breathe.
Answer the following statement true (T) or false (F)
Which of the following is not a way in which local mountains can be built?
A) Prolonged volcanism in composite volcanoes B) Thrust faulting C) Normal faulting D) Folding E) All of these are ways to make local mountains.