22. This coastal zone is usually dry and unvegetated. a. offshore zone b. backsh

Question

22. This coastal zone is usually dry and unvegetated. a. offshore zone b. backshore zone c. foreshore zone do 23. Mesa and Scarp topography is most closely associated with: a. vulcanism b. metamorphism c erosion d. deposition 24. Currently, ice covers approximately this percent of the Earth's land surface. a, 30% b. 50% c. 75% d.10% 25. Cold air moving over a warmer lake surface will esult in this type of fog. a. advection b. radiation c. evaporation d. convection 26. The theory of "seafloor spreading" is based on the fact that the ocean crust contains this element. a. oxygen b. sillicon c. iron d. carbon 27. This section of Earth's interior is thought to be a the crust b. the lithosphere c. the inner and outer core d. the thermosphere mostly iron and nickel, with some siica. latitudes 28. The global westerly wind rone most heavily impacts the a. equatorial b. middle c. subtropical d. the westerlies show no gener al latitudinal pattern 29. This is a vegetation type dominated by coniferous nedle-leaf evergreen trees a tundra b. midlatitude deciduous forest c boreal forest d. savanna ?30. The greatest weakness of Wegener's theory of Continental Drift was a. the use of fossils as evidence b. its rejection of evolution as an explanation for the diversity of life forms c the use of paleomagnetism as evidence d. the lack of a plausible mechanism for the movement to occur 31. Sedimentary rocks comprise about this percent of the rocks found on the continental surface. a. 5 b. 25 c. 55 d. 75 8

Explanation / Answer

22) backshore zone

this region is between foreshore and coastline, usually this zone is dry and with out vegetation.

23) erosion

the word mesa means table and scarp means steep, these are associated with sediment erosion, mainly cliff where the sedimentary stratas are horizontal

24)10%

presently 10% of earth surface is covered by glaciel ice, ice caps,and ice sheets

25)evaporation

as the lake surface is warm the evaporation will be high, the sudden passage of cold air causes the evaporation fog due to fall in temperature

26)iron

oceanic crust consist if basalt which is rich in magnesium and iron

27)the inner and outer core

the denser part of the earth, is the inner core which is solid and liquid outer core.

28)middle

westerly wind came in to play between 40 to 50 degree latitude,

29)boreal forest

boreal forest or snow forest consist of pines and spruces.

30)the lack of plausible mechanism for the movement to occur

31)75%

majority of earth surface is covered by sedimentary rock which is formed from the primary rock, the igneous rock and metamorphic rocks.

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