Vanilla originally came from South and Central America and the Caribbean; the first people to have cultivated vanilla evidently seem to be the Totonacs of Mexico’s East Coast. The Aztecs acquired vanilla when they conquered the Totonacs in the 15th Century; the Spanish, got it when they conquered the Aztecs.
Answer: An erosion of soil which enters waterways
Explanation:
Acidic water is more poisonous to human, animal and plant life so if acidic water were to wash into a river that humans drink, the health risks posed to those humans would increase.
If there were plants and animals connected to the river, the risks to them would increase as well and disrupt their life cycle.
Acidic water does not make water more or less capable of soil erosion so the water being acidic would not contribute to soil erosion.
Well they can fly duhh. But there are other things as well they are very good hunters believe it or not birds have to use certain techniques to catch and find worms and other foods like the eagle as big as an eagle is the fact that it can make a top notch stealth approach on any of its prey is amazing. The way birds learn to fly is crazy but fascinating while birds are babies the parent pushes them off a high tree branch and wait till they get to a certain point if they don't fly they swoop down and catch them and do it again. This is to build the instinct within the baby bird to flap their wings. Now... When the bird gets to a certain age they should know how to fly unless they've broken a wing from all the times of falling from 80 foot trees or higher. But anyway the parent pushes them off for the last time and if they fly they go away and stay away forever but if they don't the parent must let them fall to the ground because at that point the bird won't survive in case of a predator attack.