Why was it difficult for large civilizations in Mesoamerica and South America to hold together?(1 point)%0D%0AResponses%0D%0A%0D%0Adifficulty in growing food%0D%0Adifficulty in growing food%0D%0A%0D%0Aweak military%0D%0Aweak military%0D%0A%0D%0Areligious differences that caused disputes within the civilizations%0D%0Areligious differences that caused disputes within the civilizations%0D%0A%0D%0Avariations in environment and geography that made travel and communication difficult
