Answer:
some empires inveneted things that we dont no about that could be useful
Explanation
when the roman empire fell medical books where burnt and thoose medicines could be still uncovered by us. so by studying them we might be able to discover inventions and discoveries that they made.
Answer:
December 26
Explanation:
The soviet union collapsed dec 26 1991
The Europeans wanted to avoid interaction with Muslims and the Muslim monopoly on Indian ocean trade.
Answer:
if probably,it might be true...
Explanation:
crust are mixture of chemical substances of the earth surface like rock's or sima meaning silica and magnesium,sial meaning silica and aluminum....