Using complete sentences, explain the impact of large-scale agriculture in the southwestern United States on our water
supply

Southwestern area of the United States take water from the Colorado river for irrigation and 90% of the water of river is diverted here. This causes shortage in the supply of drinking water.

Explanation:

Large scale agriculture is the agriculture which takes place at a large rate and helps the farmers and the peasant to earn their own livelihood and supply the food grains and other crops in the market for commercial purposes.

Since it is done on a large scale, water supply becomes very important for this purpose. In the southwestern area of the United States also irrigation is provided by dams which takes water from the Colorado river. This will lead to shortage of drinking water.

since there isn't any suggested answers i will give you the reason and hopefully you can figure it

south africa, or rather all of africa, has not been in the location in which it is nowadays throughout the geological past. after the super-continent pangaea started to break apart, gondwanaland, in which was africa, moved further south, and parts of it came to be very close to the south pole. because the climate in this part of the world is very cold due to the very dispersed sun rays in there, what is now south africa, started to freeze, and the conditions were right for the formation of glaciers. the glaciers existed up until the period when gondwanaland started to break apart and what is now africa started to move towards north, sp it warmed up and the glaciers melted.