The Europeans brought many deadly diseases with them from Europe. The Native Americans did not have the antibodies to deal with these unknown sicknesses so most of their population died off.
They're used by humans for fossil fuel and in entertainment. They were not created by the human race, they were created through thousands of being underground and soft tissues quickly decompose leaving the hard bones or shells behind. Over time sediment builds over the top and hardens into rock.
Answer:
Influx of gold and silver
From an economic viewpoint the discovery of new silver and gold deposits as well as the productivity increase in the silver mining industry perpetuated the price revolution. ... Also during this time the Spanish and Portuguese brought a large amount of gold from the New World to Europe.
Infant mortality is the death of an infant before his or her first birthday. The infant mortality rate is the number of infant deaths for every 1,000 live births.
