Collectively, particles of soot, smoke, dust, and pollen are called ____
A) hydrocarbons
B) aerosols
C) carcinogens
D) haze
B
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Which of these plans should we implement to avoid the worst of the projected effects of climate change due to rising levels of CO2 in the atmosphere?
A. Cut our emissions of greenhouse gases by 80% by 2050. B. Stabilize our greenhouse gas emissions at our current levels. C. Replant the clear-cut areas of the rainforest with biodiesel crops. D. Convert all of our cars over to all electric vehicles immediately.
Two major approaches to non-fossil-fuel energy alternatives are renewable energy and
A) nuclear power. B) geothermal. C) wind energy. D) solar energy.
Why have the Chechens long resisted Russian rule, and what actions has Russia taken under Putin to gain control of Chechnya?
Highs, lows, fronts, and conflicting air masses frequent the ____
a. prevailing westerlies b. polar region c. doldrums d. horse latitudes