Long Island Coastal Homes

I need help answering these geography questions, since I can’t seem to find them in my textbook (note: series of questions):

1) If a drainage basin of 100 mi² has 3 streams totaling 25 mi² in length, its drainage density is

A) 33,333
B) 0.25 mi/mi²
C) 4mi/mi²
D) 3

2) Which of the following surface conditions would limit the effectiveness of wind as an erosional agent?

A) Surface materials that are noncohesive.
B) Surfaces covered with little or no vegetation.
C) Surface materials that are dry.
D) Surface materials consisting of clay-sized particles.

3) Cross-stratification can be used by geologists to

A) find ventifacts
B) locate water
C) determine paleo-wind directions
D) locate fault planes

4) Approximately what percentage of the population of the United States lives in a coastal area?

A) 1/20 (I’m thinking this one, but I don’t know)
B) 1/2
C) 2/3
D) 1/4

5) Which of the following is true of worldwide sea level?

A) Changes in sea level are usually unrelated to tectonic processes
B) Over the long term, levels have been very constant
C) Changes seem to occur without any relation to global average temperatures.
D) It was about 130m (430 ft) lower 18,000 B.P., and about 10 cm lower 100 years or so ago.

6) The fact that the mixing zone in the ocean constitutes a _______ percentage of the total ocean volume means that wastes dumped into the ocean will be _______ diluted.

A) small; quickly
B) large; quickly
C) small; slowly
D) large; slowly

7) Which of the following would not be found along a tectonically active shoreline?

A) sea stacks
B) cliffs
C) barrier islands
D) terraces

Which of these statements is correct?

A) Subarctic climate regions with seasonally snow-free ground are periglacial regions.
B) Periglacial regions can sometimes feature polygonal rock formations.
C) Permanently frozen subsurfaces ground is called permafrost.
D) Periglacial regions occupy about 20% of Earth’s land area.
E) All of these are correct.

9) Which of the following is true of the snowline?

A) It decreases in elevation with increasing latitude.
B) It occurs at approximately the same elevation at all latitudes because the environmental lapse rate is approximately the same at all latitudes.
C) It increases in elevation with increasing latitude.

Out of 40 questions, these are the questions that remain. Oh, and you don’t have to answer all of them if you don’t want to. I don’t expect anyone to know these questions anyway. And for the record, these questions have nothing to do with my lectures whatsoever, since my teacher never went over this. Again, tried searching through textbook and online…can’t find a single thing, but that’s probably me. Requesting assistance…

1) 25 / 100 = 1/4 = 0.25 (B)
2) D) (by process of elimination)
3) C) determine paleo-wind directions (I think)
4) B) 1/2 (sorry, this one I do know. I found a source for you just so you can confirm it)
5) D)
6) C) small; slowly (seems logical, but a bit of a guess)
7) I don’t see why any of these wouldn’t be possible.
E) (I know a couple are)
9) A) (although there are other factors)

Sorry, I’m usually better at the geology questions in the Geography category, although the ones in Earth Science are generally more technical than what I remember, even though geology was my major for a couple years.

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