When coal or oil are burned, some part of it is completely combusted, forming CO2; another part is partially combusted, forming CO (carbon monoxide); and some remains unburned and is released as soot
Along with sulfur dioxide, these are the main components of ________.
A) ozone
B) CFCs
C) particulates
D) industrial smog
E) photochemical smog
D
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The boundary between Argentina and Chile is an example of a
A) prorupted boundary. B) geometric boundary. C) physical boundary. D) cultural frontier. E) perforated frontier.
Ozone, PAN, and small amounts of other oxidating pollutants are the ingredients of photochemical smog and grouped under a single heading called ____
a. NOx compounds b. volatile organic compounds c. hydrocarbons d. radicals e. photochemical oxidants
Explain the statement "the lower down in the food chain we eat, the greater percentage of solar energy we put to use, and the more people Earth can support" in terms of trophic levels and pyramids of energy
What will be an ideal response?
Which of the following statements is false?
A. Earthquakes occur along faults B. The largest North American earthquake in recorded history occurred in Missouri C. Tsunamis are generally caused by volcanic eruptions D. Human activities can trigger earthquakes