Biomass energy is energy contained in ________
A) firewood and other plant material
B) the Earth's heat
C) water
D) the sun
E) wind
Answer: A
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An important condition for the formation of coal is ________
A) abundant plant and animal life in a region B) acid rich waters that reduce the organic matter to pure carbon C) decomposition of organic matter with abundant oxygen D) incomplete decomposition of organic matter due to a lack of oxygen
The geologic relationships in this figure indicate
A. that the lava flow pushed the trees over. B. that materials beneath the lava flow were uplifted from great depth. C. that the lava flow is younger than the landscape surface partially covered by the lava flow. D. that the lava flow overlies an angular unconformity.
Although California leads the nation in wind power, it is likely to be surpassed by another area of the
U.S. Which area is likely to take the lead in wind power generation? What will be an ideal response?
________ have resulted in mass coral bleaching and ocean acidification (due to absorption of excess CO2), which destroy the coral in the Great Barrier Reef
A) Too many divers and tourists B) Rising sea temperatures C) Bleach spilled from tankers off Australia's coast D) Oil spilled from tankers in the Coral Sea