Describe the association between prolonged intense episodes of heat and air pollution and the possible effects it has on human health
High temperature and air pollution often appear at the same time and place. It is difficult to tell whether heat and air pollution act individually or collectively. The stationary domes of upper-level high pressure that can lead to heat waves also tend to produce multiple days of sunshine and stagnant air, conditions ideal for the formation of ground-level ozone and the accumulation of small particulates in the atmosphere. These, in turn, are directly linked to a variety of dangerous, potentially fatal health conditions, including cardiovascular and respiratory problems.
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Who normally identifies the problem in the policy cycle?
A. The public identifies a problem and insists on help in correcting the problem. B. The government normally identifies issues for groups who do not recognize problems themselves. C. Either the public or the government identifies the issue, depending on the problem. D. The government normally identifies issues for groups who do not have a voice (such as children) in the issue. E. None of these is correct.
Drip irrigation is ________
A) more than twice as efficient at conserving water as traditional conventional irrigation B) used in aquaculture C) only half as efficient at conserving water as center-pivot irrigation D) typically used in combination with flood-and-furrow irrigation E) more likely to result in soil salinization than other irrigation techniques
The body waves that can only pass through solids are
A) primary (P) waves. B) tertiary (T) waves. C) secondary (S) waves. D) quaternary (Q) waves.
What causes tides?
A. gravitational attraction of the Sun B. gravitational attraction of both the Moon and Sun C. gravitational attraction of the Moon