Corals are
A) plants.
B) fungi.
C) cnidarians.
D) sponges.
C
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A mass of falling and tumbling rock, debris, and soil leveling at a high velocity owing to the presence of ice or water is a
A) debris avalanche. B) creep. C) rockfall. D) landslide. E) mudflow.
Which was the world's largest accidental oil spill?
a) Exxon Valdez (1989), Gulf of Alaska b) Ixtoc 1 (1979), Gulf of Mexico c) Deepwater Horizon (2010), Gulf of Mexico d) Persian Gulf War (1991), Persian Gulf e) New Carissa (1999), Coos Bay, Oregon
The Kyoto Protocol was ratified by 130 countries in 2004 and became international law in 2005. What is the goal of the Kyoto protocol?
A) reduction of emissions from scrubbers used in industrial plants B) reduction of chlorofluorocarbon emissions C) reduction of greenhouse gas emissions D) reduction of air pollutants from nuclear power plants E) reduction of emissions of nitrous oxide to control acid rain
Lowering combustion temperatures in furnaces
A. increases emission of lead and sulfur. B. has no effect on air-pollution emissions. C. reduces particulate pollution. D. reduces production of nitrogen oxides.