Answer:
The french and indian war
Explanation:
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Greenbacks are dollar bills. The term is primarily used in America. 'Greenback' is also a term for an animal with a green back, especially of a species of trout in Colorado.
The conflict in Argentina known as the dirty war occured in the 1970s and 1980s.
<span>Grand Canyon is an awesome gash in the earth, running for about 200 miles (300 km) along the Colorado River in the northwest corner of Arizona. The Canyon is about a mile (1.6 km) deep, and about 10 miles (16 km) from north to south rims. The walls of the narrow, zig-zag inner gorge expose tilted and faulted Precambrian rock, while the walls of the outer and upper gorge are streaked with thick, colorful, horizontal bands of fossil-bearing rock, representing roughly the “bottom half” of the geologic column.</span>