It was much lighter and easier to carry unlike the coins they normally used.
I think that the heat will not be able to maintain itself enough and the cold gases of the space could freeze earth and we would not be alive.
Hope this helps
Answer:
Several reasons: military and technological superiority, better military and administrative organization, an industrial economy backing military capacity, one that was poised and able to benefit from the conquest and colonization of new lands rich in raw materials; the need to access to raw materials and open new markets.
Explanation: