A Fresh Future

The video discusses the scarcity of accessible freshwater on Earth, highlighting human activities like overharvesting, pollution, and dam construction that negatively impact freshwater systems. It showcases the Elwha River restoration as a successful conservation effort and encourages viewers to take simple actions to conserve water.

What is the primary human activity that negatively affects the hydrosphere?

• Overharvesting

• Composting

• Urban gardening

• Recycling

How do dams affect the natural flow of rivers?

• They prevent rivers from running their full natural course

• They increase the flow speed

• They make rivers wider

• They purify the water

What was a significant consequence of the dam on the Elwha River?

• Increased fish population

• Improved water quality

• Disruption of salmon migration

• Creation of new habitats

What is one action individuals can take to help conserve freshwater?

• Taking shorter showers

• Using more water for gardening

• Leaving the faucet running

• Taking longer showers

Since 1999, how many dams have been removed across the United States to restore natural river flows?

• 100

• 250

• 430

• 600