The greatest loss of stratospheric ozone ________
A) occurs in urban areas where automobile use is most prevalent
B) has occurred over Antarctica
C) is expected to occur in the mid-21st century
D) occurred after the Montreal Protocol failed to be ratified
B
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Nationwide in the United States, particulates come mostly from ________, but in urban areas they are derived from vehicles and industrial sources
A) soil erosion B) smoke from burning forests C) coal-fired power plants D) roads and construction sites E) non-U.S. sources
One widely used method for desalinating water is ____.
A. activated carbon filtration B. subsidence C. transpiration D. reverse osmosis E. treadle pumping
Which of the following is not of our solar system?
A) It consists of 8 planets and some 165 planetary satellites (moons). B) Of all the planets, Neptune has the most moons. C) Six of the eight planets have at least 1 moon. D) Several identified planetary satellites are still awaiting official confirmation.
Smoking causes the premature death of more people through heart attacks than through lung cancer.
Answer the following statement true (T) or false (F)