A negative feedback loop can also be described as a ____ feedback loop.
A. chaotic
B. corrective
C. tipping point
D. harmful
E. throughput
Answer: B
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Which of the following describes worrying changes occurring in the environment worldwide?
A. Lowering sea levels and increased rainfall B. Increases in ice cover C. Increasing ocean alkalinity D. Increases in permafrost cover E. More intense droughts, and rivers that are running dry
Environmental impact would be greatest mining for ____ ore
a. a high-grade b. a moderate-grade c. a low-grade d. a plentiful e. a low- to moderate-grade
Which of the following variables would be used to estimate potential evapotranspiration?
A) Temperature and precipitation B) Precipitation and evaporation C) Temperature and latitude D) Wind speed and latitude E) Precipitation and humidity
On a weather map of air pressure, what can you infer from a close spacing of isobars?
A) A weak pressure gradient creating a slower flow of air B) A steep pressure gradient creating a slower flow of air C) Little without knowing temperature patterns D) Higher pressures E) A steep pressure gradient creating a faster flow of air