"Vampire" power is ________
A) when electric currents pass through silicone-rich materials
B) when most of the energy produced is converted to kinetic energy that can be used later
C) power that is stored in an electrical system for use later
D) the hidden cost of energy
E) energy used when appliance is turned off, but in "standby" mode
Answer: E
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By the ____________________, evaporite deposition had ended in the Gulf Coast region of North America and
normal marine sedimentation had begun. Fill in the blank(s) with the appropriate word(s).
Which of the following is least associated with economics?
A) A miner pans for gold in the mountains of California. B) An artist sells her paintings in an art gallery. C) Studying the sky, a child looks for faces in the clouds. D) A waitress carefully wipes down tables before heading home after a long day.
Most of the atmosphere's heat comes from:
a. absorption of infrared radiation coming from the earth b. latent heat. c. reflection. d. direct absorption of the sun's radiation.
If the cold occurs over a widespread area for a long enough time to damage certain crops, the extreme cold is called (a) ____
a. frost b. dew frost c. freeze d. dew e. nip