Explain the role wind plays in air pollution
What will be the ideal response?
ANSWER: Wind speed plays a role in diluting pollution. When vast quantities of pollutants are spewed into the air, the wind speed determines how quickly the pollutants mix with the surrounding air and, of course, how fast they move away from their source. Strong winds tend to lower the concentration of pollutants by spreading them apart as they move downstream. This process of spreading is called dispersion. Moreover, the stronger the wind, the more turbulent the air. Turbulent air produces swirling eddies that dilute the pollutants by mixing them with the cleaner surrounding air. Hence, when the wind dies down, pollutants are not readily dispersed, and they tend to become more concentrated.
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An inversion is extremely stable because
A) the environmental lapse rate is very small B) the environmental lapse rate is zero C) the environmental lapse rate is very large D) there is no environmental lapse rate
What are the different forms of the same element with varying numbers of neutrons?
Electrons Isotopes Neutrons Protons
Sea levels were higher in the Mesozoic than they are today
a. True b. False
Match the tectonic boundary with its direction of motion
A) Two plates pull apart from each other B) Two plates slide past each other C) Two plates move toward each other 1) Convergent boundary 2) Divergent boundary 3) Transform boundary