Why does cuba have to import many producuts

Cuba is highly dependent on imports to feed its population, with significant imports of many Cuban dietary staples (wheat, rice, corn, soybeans and related products, dry beans, meats, and dairy products).

Explanation:

the rebels’ chances of victory at lexington & concord were fairly slim, given the fact that most of them very untrained and they were up against the world's greatest military force.  

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.