The largest problem with adopting the new technology of renewable resources is ________
A) in evaluating the scientific and economic impacts
B) that long?term maintenance costs are much higher than those for fossil fuels
C) that energy production facilities are not located near consumers
D) that technological advances have not been made in the last 30 years to meet our energy needs
E) that the startup costs may be high
E
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Coal, a fossil fuel created by the remains of plants that grew millions of years ago, served as a substitute for fuel wood during the sixteenth century
Indicate whether the statement is true or false.
Doppler radar determines precipitation ____ by measuring changes in the ____ of the reflected radio wave
A) size; intensity B) velocity; intensity C) velocity; frequency D) size; frequency
Which of the following is NOT one of the Great Lakes?
a. Lake Michigan b. Lake Erie c. Lake Ontario d. Lake Huron e. Lake Missoula
Which of the following is now an erosional feature formed by an alpine glacier?
A) cirque B) horn C) drumlin D) col