Different historians have come up with different causes for the collapse of civilizations. Sort the effects based on whether they were caused by overpopulation, drought, or both.

Which statement best summarizes the outcome of the haitian revolution? a. french colonists agreed to remain in haiti to the new countryplan its government.b. france gave up control of haiti, but it forced haitian leaders toallow slavery to continue.c. haiti established a short-lived democratic government, but it wassoon colonized again by spain.d. haiti became independent from france, but the fightingdevastated its economy.