Global climate change has been suggested as a reason for societal changes or collapses in several instances. Why should drought or other climate-induced change cause social change? Explain how this could possibly occur
What will be an ideal response?
In the past, such climatic changes led to drought or flooding, both of which could
severely affect a region and cause famine. We depend on larger areas, but a drought similar
to the mid-millennium one in North America would affect us just as severely in our times as
previous societies have been affected by such events.
An example of this is the effect of global warming. Proponents of business as usual dismiss
fears of massive dislocation. However, the submergence of large parts of major coastal cities
by sea level rise would have an enormous economic impact.
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According to Newton's laws, if an object is moving in a straight line with a constant speed:
A) it will continue to do so until it runs out of energy. B) it will continue to do so unless compelled by an outside force to do otherwise. C) it will move more and more slowly, in the same direction, until it comes to a complete stop. D) it will eventually come to a stop and reverse directions. E) it will gradually move faster and faster until it reaches the speed of light.
Colors are barely seen or not at all in nighttime because moonlight
A) has almost no colors in it. B) is too dim to activate the retina's cones. C) photons don't have enough energy to activate the retina's cones. D) is primarily yellow light. E) is only semi-transparent in Earth's atmosphere.
The masses of stars are found by measurements of
A) light intensity. B) temperature. C) Doppler shifting. D) binaries. E) relative sizes.
A watch dial that continues to glow after a week in the dark is almost certainly
A) fluorescent. B) phosphorescent. C) polarized. D) radioactive.