Answer:Why are many fishing boats found near ocean upwellings?
Many marine species gather there to eat the nutrients brought to the surface.
Explanation:
The answer is either sugar or tobacco as they were both essential crops to the Caribbean Islands economy.
One way would be to limit who can receive a passport or visa to travel to another country and another would be at the entrance to the country they may not be admitted for example due to inadequate funds to live. In my case, when I travelled by bus from Costa Rica to Panama, the Panamanian authorities required that I either have a ticket out of the country or a return ticket back to San Jose, Costa Rica.
The answer would be : <span>volcanism.
Hope this helps !
Photon</span>
