In the world's major core economies, the production and distribution of ________ has become the most important contributor to gross domestic product
A) manufactured goods
B) knowledge
C) energy
D) food
E) computers
Answer: B
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_______ is (are) responsible for placing oxygen in the atmosphere.
A - automobile exhaust B - plants C - chlorofluorocarbons D - lighting strikes E - burning
Which of the following acts to keep a rock solid (instead of melting)?
A. an increase in the vibration within a lattice B. an increase in confining pressure C. an increase in temperature D. None of these choices are correct.
The Montreal Protocol is a UN agreement that is intended to ________
A) reduce air pollution globally B) reduce ozone in the atmosphere C) reduce CO2 in the atmosphere D) reduce CFCs in the atmosphere E) make everyone feel good about the environment without really fixing anything
Consider the plants, animals, and other organisms present in a natural area near you, and then do the following: (a) Imagine how the area may have undergone ecological succession, and (b) analyze the population-balancing mechanisms that are operating
among the various organisms. Choose one species, and predict what will happen to it if two or three other native species are removed from the area. Then predict what will happen to your chosen species if two or three foreign species are introduced into the area.