Your answer is 51 because you have to add
Answer:
Dam or river
Explanation:
The most common type of hydroelectric power plant uses a dam on a river to store water in a reservoir. Water released from the reservoir flows through a turbine, spinning it, which in turn activates a generator to produce electricity
Vikings in the middle ages were known to trade, explore, raid and settle . to be assimilated into the rest of Christian Europe, which influenced the ideals of the Scandinavian rulers.
Answer:
Harriet Tubman was an American abolitionist and political activist. Born into slavery, Tubman escaped and subsequently made some 13 missions to rescue approximately 70 enslaved people, including family and friends, using the network of antislavery activists and safe houses known as the Underground Railroad. During the American Civil War, she served as an armed scout and spy for the Union Army. In her later years, Tubman was an activist in the struggle for women's suffrage.
Explanation: