The U.N. FAO's Global Forest Resources Assessment of 2010 concluded that ________
A) deforestation has slowed but we still lose forests at the rate of 5.2 million ha/yr
B) deforestation is now in equilibrium with new planting
C) there will be no forest ecosystems left by 2040
D) to protect forest biodiversity, forested public lands should be closed to recreation
E) all nationally owned forests should be managed by clear-cutting
A
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The above map graphically represents
A) U.S. students studying abroad. B) U.S. expatriate destinations. C) refugees from the U.S. D) contraceptives provided by the U.S. Agency for International Development. E) medical personnel sent to help fight epidemics and zoonoses.
A muddy sedimentary environment exposed to the air allowing the sediment to dry out will result in
A) ripples. B) mudcracks. C) cross-beds. D) graded beds.
What are the 2 types of Cyclic Global Change?
a. Physical cycles and chemical cycles b. Biological cycles and chemical cycles c. Physical cycles and biogeochemical cycles d. Repeatable cycles and non-repeatable cycles
The purpose of Daylight Savings Time is to
A. allow the Greenwich Mean Time system to represent the actual position of the Sun in the sky more accurately. B. provide an extra hour of daylight in the evening hours, to conserve energy, at the expense of an hour of daylight in the morning hours. C. adjust for variations in the speed of Earth's orbit around the Sun at different times of the year. D. allow an extra hour per day for crops to grow during the growing season, at the expense of an hour per day when crops are not in the ground.