Using its authority from a new rule issued under the Clean Air Act in 2011, the EPA
A) can require a 90% reduction of mercury emissions from power plants.
B) can reintroduce leaded gasoline beginning in 2014.
C) can permit chromium, tin and arsenic in fungicides dispensed with fertilizers.
D) will require coal-fired power plants to remove heavy metals from coal before it is burned.
A
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Why might disposing of a lead-acid battery, nickel-cadmium battery, or mercury battery in a landfill be a bad thing?
A. Cadmium, mercury, and lead are all very reactive and generate highly unstable compounds. B. Cadmium, mercury, and lead are all radioactive and release radiation. C. Cadmium, mercury, and lead are all toxic metals and could leak out of the landfill. D. all of the above E. none of the above
The status of women is a cultural spatial variable because:
A) women are found all over the world B) gender relationships and role assignments differ among societies C) women are biologically different from men D) women do different kinds of work
A mass of falling and tumbling rock, debris, and soil traveling at a high velocity owing to the presence of ice or water is a
A) rockfall. B) mudflow. C) debris avalanche. D) landslide.
In the United States, tornadoes are most frequent during the ____, and least frequent during the ____
a. summer; fall b. spring; winter c. spring; fall d. summer; winter e. winter; fall