"Widely scattered clumps of trees, warm temperatures year-round, and alternating dry and wet seasons, with herds of herbivores" are the characteristics of which of the following?
A. tall-grass prairie
B. tundra
C. short-grass prairie
D. temperate grassland
E. savanna
Answer: E
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Which of the following is typically erupted from a volcano?
A) Scalding hot ash, lava, and gases B) Ice and snow, combined with steam C) Large quantities of liquid water
A declining dependency ratio ________
A) requires permanently decreased spending on education but temporarily increased costs associated with old-age medical expenses B) requires increased spending on education but decreased costs associated with old-age medical expenses C) permits temporarily decreased spending on education and old-age medical expenses D) requires immediate and permanent increased spending on education and old-age medical expenses
Figure 3.15 Generalized pyramid of energy flow showing the decrease in usable chemical energy available at each succeeding trophic level in a food chain or food web.
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Use the accompanying figure to answer the following five questions.
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Why is heat shown as being lost to the environment?
What will be an ideal response?
________ weathering occurs when differences in resistance or environmental factors produce uneven surfaces on rocks
A) Chemical B) Differential C) Spheroidal D) Mechanical