What region of the world has the most remaining potential to develop hydropower?
A) developed world countries
B) developing world countries
C) Russia and Eastern Europe
D) all of the above have barely used this energy source (less than 1% of its potential has been tapped)
E) all of the above regions have maximized their use of waterpower sites
B
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Which of the following processes causes salty potato chips left outside in an uncovered bowl to turn soggy on a humid day?
A. the attraction of water by hygroscopic condensation nuclei B. the repelling of water by hydrophobic condensation nuclei C. the attraction of water by hydrophobic condensation nuclei D. the repelling of water by hygroscopic condensation nuclei
The last minerals to crystallize are those with the
A) higher melting point. B) lower melting point. C) strongest bonds. D) weakest bonds.
During a demographic transition, the death rate drops while the birthrate remains high.
Answer the following statement true (T) or false (F)
One degree of latitude is approximately equal to:
a. 7 miles (11.27 km). b. 112 miles (180.25 km). c. 69 miles (111.05 km). d. 11.2 miles (18.0 km).