Weathering is related to the breaking down and loosening of rock or soil into smaller pieces, but the weathered pieces remain in place. Erosion is related to the movement of weathered (and sometimes non-weathered) pieces away from the source.
A contour line<span> or isoline </span>connects points<span> on a map that are of </span>equal<span> value. Examples of contour </span>lines<span> or isolines are isobars (pressure) and isotherms (</span>temperature<span>). Perhaps the prototypical example of a contour </span>line<span> is that which </span>connects points of equal<span> elevation (that is, height above sea level).</span>
The corn belt is an example of an area that is found in mid western part of United States.
Explanation:
The corn belt came into existence since the year 1850, it was dominated by the production of corns. This word is mainly used by US that includes Indiana, lowa, ohio,illinois, South Dakota,Minnesota, Nebrasaka,Missouri, as well as Kanas.These states were usually capitalized.
Corn belt is considered to be an important belt because this belt helps in agriculture purpose. This belt produces corns as well as soyabeans. Alfaalfa as well as winter wheat are two important crops.