How did slavery support the growth of the British empire

Slave labour was essential to early settlement of the colonies, which needed additional people for labour and other work. Also, slave labour produced the major consumer goods that were popularin the area of world trade during the eighteenth and early nineteenth centuries: coffee, cotton, rum, sugar, and tobacco. A quick re-cap, Slave labour helped develop the British Empires large territories and help its great economy!!

where are the statements?

because he created electricity