Currently, which of the following renewable energy sources has the highest per kilowatt hour (kWh) cost?
A) wind power
B) geothermal power
C) solar power
D) coal
E) hydropower
C
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What is usually the ultimate cause of the stresses and pressures that build up in rocks and produce
earthquakes? What will be an ideal response?
Residence time is ________
A) the chemical change that occurs with time, when substances alter the growth and development of humans B) average length of time a molecule of a substance spends in the environment C) the length of time it takes for chemicals to be stored in the tissues of living organisms D) the chemical change that occurs with time, when substances are altered by the sun or metabolized by microorganisms E) the length of time it takes to produce toxic chemicals in the environment
Waste that includes paper, food wastes, cans, bottles, yard waste, glass, wood, and similar items is called ____ waste.
A. industrial solid B. hazardous C. municipal solid D. toxic solid E. electronic
Air pollution can easily cross national boundaries
Indicate whether the statement is true or false