The continental margin is the:
a. transition between the gently descending continental shelf and the deep-ocean floor
b. apron of accumulated sediment at the base of the continental slope.
c. shallow submerged extension of a continent.
d. submerged outer edge of a continent.
d
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The U.S. Department of Agriculture has become increasingly concerned about soil erosion, because expansion of agricultural activities between 1982 and 1992 resulted in sharp increases in rates of soil erosion loss from farmland.
Answer the following statement true (T) or false (F)
In which region of the world would you expect irrigation to be most critical?
A) Rainfall is high. B) PET is equal to rainfall. C) PET is lower than rainfall. D) PET is higher than rainfall. E) Rainfall is low.
What is the difference between an ocean and a sea?
A. An ocean is a vast body of water encompassing 70% of the Earth, whereas a sea refers specifically to a large, inland, saline body of water. B. The term sea is used to describe the global, interconnected water body covering 70% of the Earth's surface, whereas oceans refer to the individual basins within this global sea. C. Seas are generally smaller than an ocean and tend to be associated with land masses, whether partially enclosed by land or large, inland, saline water bodies. D. There is no difference, just a different term for the same physical feature.
Metamorphic rock forms from pre-existing rock when heat and pressure cause solid-state transformations.
Answer the following statement true (T) or false (F)