Who was christopher columbus? where was he from? what were his motivations for exploration? what motivated him to cross the atlantic in search for . . well, what did he seek? and what did he find?

Christopher Columbus was an Italian navigator, he was looking for a shorter route to get to Asia and had the idea of navigate the now called "Atlantic Ocean" to arrive faster in India, instead of it, he arrived to other continent, America, so he discovered America.

Explanation:

In XV and XVI centuries, people believed that the world was only integrated by Europe, Asia and Africa, so the idea of circumnavigate the world from Europe to Asia into the Atlantic Ocean was reliable.

answer: mining of copper is a good thing because ,it is not carcinogenic to environment.copper resources are estimated at nearly 5.8 trillion pounds of which only about 0.7 trillion pounds (12%) have been mined throughout history.yes copper is the best metal for conducting electricity as it is used in electric wires.if someone falls into a mine he or she may get hurt if they do not wear any safety equipments or fall accidently, it depends on how shallow or high is the mine . the actual cost of a dump truck varies significantly depending on the truck itself, with a range between $100,000 to $150,000 for a new purchase, and a drastic swing between $15,000 to $100,000 for a used purchase.

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explanation: