According to equiano, what physical hardships do the captives suffer during their passage across the atlantic ocean

According to Equiano, the captives had to suffer severe hardships during their passage across the Atlantic ocean  as the captives were chained and were given little food to eat and sometimes even no food to eat. The captives were kept in very small and close quarters that they were suffocated and got sick without proper food and water.

1. is geographic distribution

2 is increasing complexity

3 is transitional forms