When it was discovered that CFCs were depleting the ozone layer, the manufacturers immediately ceased production of them.
Answer the following statement true (T) or false (F)
False
The manufacturers of CFCs, including the DuPont Company, attacked the findings when they were published in 1974, and only conceded after 14 years of objections to phase out CFCs. They finally stopped U.S. production in 2010.
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As shown in the Discussion Starter of this chapter, 26% of the 9.6 quadrillion Btu of renewable energy in 2014 came from hydroelectric plants. How much coal is saved (not consumed) because of the hydroelectric plants? Assume coal has an average energy content of 10,000 Btu per pound and a coal-fired power plant has an efficiency of 36% and a 6% loss in the transmission lines.
What will be an ideal response?
List the months that soil moisture remains at field capacity (full).
What will be an ideal response?
A downslope wind coming off a mountain will ____ in a nearby city affected by a strong polar high-pressure system
A) decrease snowfall B) increase the temperature C) decrease the temperature D) have no affect
Which one of the following would be a physical component of the desert ecosystem of the southwestern United States?
A) Cacti B) Ferns C) Deer D) Rocks