How many plants, animals, and microorganisms became extinct in 2011?
A) 100 B) 1,000 C) 10,000 D) 100,000 E) 20,000
E
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The Oil Pollution Act of 1990 ________
A) is not effective at altering national oil incidents B) increased gas taxes to pay for the Exxon Valdez spill C) restricted oil movement to land rather than sea D) was a global treaty signed by all oil?transporting nations E) required that by 2015 all oil tankers in U.S. water be double hulled
A(n) ____________________ ____________________ features clear skies and very rapid temperature drops, and primarily afflicts the Great Plains
Fill in the blank(s) with correct word
How does snow vary with temperature?
A) Snow has a uniform moisture content, but cold snow consists of larger crystals. B) Warm snow is powdery and light, while cold snow is moist. C) Snow has a uniform moisture content, but warm snow consists of larger crystals. D) Cold snow is powdery and light, while warm snow is moist. E) Warm snow is often called sleet because it is mixed with rain, but cold snow is more like hail with very large solid ice crystals.
Tropical seasonal forests are specially adapted to tolerate
A. Years of drought followed by years of rain B. Annual cycles of extreme heat and extreme cold C. Annual cycles of severe drought and heavy rain D. Extreme drought and cold at the same time E. Extreme heat