Cattle drives were at one time a major economic activity in the American West, particularly between the years 1866-1895, when 10 million cattle were herded from Texas to railheads in Kansas for shipments to stockyards in Chicago and points east.
Denis Diderot, a french writer who published the first encyclopedia in mid 1700
Answer:
a. Seafloor spreading
Explanation:
As the plates move away from each other, new crust is formed at the bottom of the ocean, thus giving us seafloor spreading
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