Why is the United States coastline more vulnerable to hurricanes than in the past?
What will be an ideal response?
Answer: There has been enormous population growth along the Atlantic and Gulf coasts in recent decades.
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For b–d below, write the letter on Figure 19.1 at the appropriate location. The first location (a), has been marked as an example for you. You will need to use Figure 19.1 and the maps of world climates and biomes (found inside the back cover and outside the back cover of this manual) to find and mark:
a) a location that was a desert (under the subtropical high) but is now a rain forest (tropical). Done for you. b) a location that would have been glaciated (Arctic or Antarctic) but is now tropical c) a location that was tropical but is now in the midlatitudes d) a location that was a rain forest (tropical) but is now a desert (under the subtropical high)
Is there data to suggest there was more accretion in the distant past (4 billion years ago) or the more recent past (50 million years ago)? Explain
What will be an ideal response?
The two most abundant elements in Earth's crust are
A. quartz and feldspar. B. silicon and oxygen. C. oxygen and aluminum. D. silicates and carbonates.
When languages are depicted as leaves on trees, the trunks of the trees represent
A) dialects. B) language groups. C) language families. D) possible prehistoric superfamilies. E) language sects.