In 1968, Garret Hardin described an environmental problem in which shared environmental resources may be depleted as individuals try to maximize their gains by disproportionately using the resource. He called this "The Tragedy of the Commons
" Which of the following threats to biodiversity best reflect this "Tragedy of the Commons"? A) The appearance of many deformed frogs from overuse of herbicides
B) The accidental introduction of invasive species into North America
C) The decline of fish populations due to overexploitation
D) The fragmentation of natural habitat to build bridges and highways
C
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Hurricanes do not form ____
A) when waters are warm B) along the equator C) with an easterly wave D) when the trade wind inversion is weak
At the present time, the global human population surpasses seven billion people. If we exceed the carrying capacity of the earth, the human population may suffer a substantial collapse. ? Consider the following formula for population change: population change = (births + immigration) ? (deaths + emigration) ? What will be required of humans in order to stabilize or reduce our population?
What will be an ideal response?
Which of the following components of MSW has most recently increased the most?
A) Glass B) E-waste C) Plastics D) Paper
Pictured here is a model of how the atmosphere is heated. Which arrow represents heating of the earth's atmosphere by long wave radiation?
A. infrared energy emitted by land B. energy absorbed by land C. insolation reflected by land D. insolation reflected by clouds