For information transmission, such as in computer networks, using electrons in a copper wire is more efficient than using light in a fiber-optic cable
Indicate whether the statement is true or false.
Answer: FALSE
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The largest problem with adopting the new technologies of renewable resources is that ________
A) energy production facilities are not located near consumers B) technological advances have not been made in the last 30 years to meet our energy needs C) the energy sources are generally unavailable D) the startup costs may be high E) long-term maintenance costs are much higher than those for fossil fuels
Which of the following photographs depicts an igneous rock where the magma cooled slowly at first and then had fast cooling?
A. 
B. 
C. 
D. 
Which of the following is NOT true? Compared to U.S. cities, European cities
A) are more compact. B) have lower skylines. C) usually have central squares and marketplaces. D) have lower population densities. E) are more socioeconomically stable
Deserts such as the Sahara exist because of:
A) extreme continentality. B) sand. C) the desiccating influence of the trade winds. D) the rain shadow effect of mountains. E) the influence of the subtropical highs.