Tall grasses with a few scattered trees describe a(n) ____________________ climate or type of vegetation biome
Fill in the blank(s) with correct word
savanna
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Using the flood frequency curve in Figure 22.2 (and colored pencils to mark on graph), estimate the recurrence interval of a flood of the following magnitudes:
200 cms: _____________
1500 cms: _____________
3000 cms: _____________
Caves most commonly form in ________.
What will be an ideal response?
Many politicians and others have advocated that the U.S. reduce its dependence on oil by increasing its domestic drilling program. What are the prospects for this and the correct reason?
A. Poor, because the U.S. has so little of the world's proven oil reserves. B. Excellent, because oil production from shale is guaranteed to increase dramatically and last for decades. C. Excellent, because ANWR will produce several billion barrels once it is developed. D. Not necessary, because the U.S. has such a large share of the world's proven oil reserves.
Metamorphic rocks are produced when rocks are
A. Physically broken down B. Melted in the mantle and recrystallized C. Recrystallized through chemical processes D. Recrystallized by heat and pressure E. Chemically weathered