Which two cities mark the entrance and exit to the panama canal?

a. colón and panama city c. colón and havana b. havana and panama city d. havana and san juan

Water flows along the east coast and across the western tropical pacific towards south america, while they both are directed towards that way,  el niño does not directly affect the southern flow of water along the coast. 

Physical systems is the answer

Adrought is taking place

Ithink the best answer is d increased stability of all other biomes