The answer is D, 1759 was the year that marked the turning point of the French and Indian War. Please mark me brainliest if you can!! Have a great day!!!
The correct answer <em>is a Terrace</em>.
A farmer living on the edge of a steep mountain that would like to increase the number of crops he can grow, can build a terrace, one Inca advancement that could be of the most use for him.
The region of the Andes is a place where the tallest and difficult to access mountains exist. However, the Incas developed intelligent ways to harvest crops to take advantage of the steepest areas in the high mountains. They built terraces, cisterns and irrigation canals in the form of “s” or snakes in the slopes to angled down around the hills and mountains. The terraces covered thousands of hectares in ancient Peru, where Incas grew potatoes and corn.
D. 1800s because that's when Cuba, Puerto Rico and Mexico gained independence
One of the changes that prompted the decline of the Soviet Union was that food shortages were common and were also excesses in military spending. The food scarcity problem has become one of the major economic problems that took place in the Soviet Union wherein the country had to rely much on imports.