Answer:
When nomadic pastoralists encroach on farmland their impact can be devastating for farmers. This is especially so on the marginal agricultural land on the frontier zones bordering the deserts. The grazing of herds can quickly reduce plant cover. This makes the soil unstable, and erosion soon follows
People think the earth is flat because it seems hard to fathom that you can still stay on the earth if you're on the North Pole. This theory, that the earth is flat, was well known for hundreds of years. The vikings were the first to figure out that the earth is not flat, though Christopher Columbus gets the credit.
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The accelerated growth and advances in taxonomy as a science occurred during C. The Renaissance
The first advance in biology, during the Renaissance was Andreas Vesalius' 1543 treatise on human anatomy and later in 1545 the foundation of the first botanic garden in Padua, Itlay. After this the act of classifying zoological and botanical information developed into a science.
