Looking at the on-screen map, determine whether the concentrations of
increased-risk groups are distributed evenly or clustered. What do you
think accounts for the distribution you observe? What will be an ideal response?
Answers will vary. The increased-risk census-block groups tend to be clustered into 6 – 8
groups. The clusters may refl ect older, poorer, or ethnic neighborhoods, or combinations
of these factors.
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The seasons are primarily due to
A) the distance of Earth from the Sun. B) the wavelength of solar radiation. C) the tilt of Earth's axis. D) variations in greenhouse gas levels.
Which of the following reduces the risk of heart disease and colon cancer, maintains joints and tendons, and reduces depression, stress, and anxiety?
A) insulin resistance B) desk jobs, television, and the internet C) exercise D) metabolic syndrome
Why does temperature data collected in more recent times have less uncertainty than for the past?
What will be an ideal response?
Strategies for protecting the earth's precious biodiversity will not be implemented without bottom-up political pressure from individual citizens and groups.
Answer the following statement true (T) or false (F)