What was the main cause of death of slave ships in the 1700s?
Multiple things: abuse by the slavers , poor hygiëne also if slaves came on board sick or got sick on the way they didn't get any food because it would be a waste so they threw them overboard or often rival african tribes could be put together and they would kill each other.
How was the east African slave trade in the 1600s different from the Atlantic slave trade in the 1700s?
Slave ships were a large cargo used for transporting slaves to different country's . The slave ships were awful places and many people women , men and children were chained up and placed in a room on the ship . The people had to sit in there wee and poo and people who had died would stay there for 3-4 days before someone would clean them up.