Which of the following pairs are both major contributors of global warming?
a. Burning fossil fuels and recycling
b. Burning fossil fuels and deforestation
c. Deforestation and nuclear energy
d. Fossil fuels and nuclear energy
Answer: B
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Production of oil from ANWR would solve most the U.S. concerns about our anticipated gasoline needs.
Answer the following statement true (T) or false (F)
A jack system will increase the potential energy of a heavy load by no more than 1000 J with a work input of 2000 J. The efficiency of the jack system is no more than
A) 10 percent. B) 20 percent. C) 50 percent. D) 80 percent. E) not enough information given
The majority of earthquakes and volcanic activity occur along plate boundaries
a. True b. False
Most tropical beaches undergo seasonal transformations Indicate whether the statement is true or false