What has the Colorado River become an environmental issue?(1 point)
Responses
Oil spills have polluted the river and threatened many species.
Oil spills have polluted the river and threatened many species.
Irrigation has severely reduced the flow of water.
Irrigation has severely reduced the flow of water.
River levels are rising rapidly as a result of climate change.
River levels are rising rapidly as a result of climate change.
Frequent flooding threatens endangered habitats in the Rocky Mountains.