7 Multiple Choice 3 points Overreliance on the Colorado River for irrigation has led to what environmental problem in the Southwest United States? Water pollution Deforestation Air pollution Water scarcity

The correct answer is:<br /><br />**Water scarcity**<br /><br />### Explanation:<br />Overreliance on the Colorado River for irrigation has significantly reduced its flow, leading to water scarcity in the Southwest United States. The river supplies water to millions of people and supports agriculture, but excessive use, combined with prolonged droughts and climate change, has caused severe depletion of this critical resource.