The major fossil fuels differ in the amount of carbon dioxide they emit into the atmosphere when burned. From worst to least, these are
A) coal, natural gas, and oil.
B) coal, oil, and natural gas.
C) oil, natural gas, and coal.
D) natural gas, oil, and coal.
B
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Almost ____ % of earthquakes take place along plate boundaries
A)100 B)95 C)80 D)55 E)25
Which of the following processes involving water does the most to drive the development of a rainstorm?
A) melting B) condensation C) evaporation D) fusion E) sublimation
A company is growing algae in big tanks to make fish food. However, the algae is not growing very quickly, and they suspect either phosphorus, nitrogen, or iron is limiting. What could the company do to figure out which nutrient is limiting?
a. Add phosphorus to one tank, nitrogen to another, and iron to a third, and see which treatment increases algal growth. b. Add phosphorus, iron, and nitrogen to all tanks, and see which nutrient increases algal growth. c. Add phosphorus to all tanks, because phosphorus is the nutrient that limits algal growth. d. Add nitrogen to all tanks, because nitrogen is the nutrient that limits algal growth.
The world zoogeographic regions map includes only ________ animals
A) domesticated B) feral C) wild D) exotic E) big game