Together, ________, ________, and ________ provide more than 81 percent of the energy consumed in the United States
A) uranium; hydroelectricity; coal
B) coal; nuclear power; wind energy
C) natural gas; wind power; biofuel
D) oil; coal; natural gas
Answer: D
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What is the effect of a warm global climate on chemical weathering, and what is its feedback to global climate?
A. A warm climate increases chemical weathering and the formation of limestone, increasing CO2 levels, which in turn warms the climate more. B. A warm climate increases chemical weathering and the formation of limestone, drawing down CO2 levels, which in turn cools climate. C. A warm climate decreases chemical weathering and the formation of limestone, drawing down CO2 levels, which in turn cools climate. D. A warm climate decreases chemical weathering and the formation of limestone, increasing CO2 levels, which in turn warms the climate more.
Which of the following statements is true?
A) The terms mutagen and carcinogen are synonyms. B) All mutagens are carcinogens. C) Some mutagens are carcinogens. D) Carcinogens and mutagens are completely separate types of materials.
Compare/contrast the features of the midlatitude cyclone with the tropical cyclone
What will be an ideal response?
Nourishment levels are as valid an indicator of economic development as dollar-indexed measures of production.
Answer the following statement true (T) or false (F)