________ are used to remove sulfur oxides from the emissions from coal-fired power plants
A) Scrubbers B) Catalytic converters
C) Desulfinators D) CFCs
A
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A key option during the transition from oil to renewable energy sources is
A. coal. B. nuclear energy. C. biomass. D. natural gas. E. ethanol.
Earth systems science depends on the validity of the Gaia hypothesis
Indicate whether the statement is true or false
Recent investigations of the impact of GM crops on biodiversity in Great Britain indicate that ________
A) none of the GM crop sites showed changes in biodiversity B) birds and insects cannot digest GM crops C) some GM crops and sites showed increased biodiversity, while others showed decreases D) biodiversity increased in all GM crop sites E) GM crop sites had catastrophically reduced biodiversity
List the major mountains of the Middle East region