Chapter 4- The Great Lakes: The U.S. and Canada's Freshwater Treasures

The percentage of Earth's water that is able to meet human needs is around-

1%

How many lakes make up the Great Lakes?

Five

What could cause some areas to get more/less rainfall than they do today?

Global Warming

What is a major threat to China's water supply?

Growing population

The Great Lakes were created by the movement of-

Ice

What happened in 1972 that helped protect the Great Lakes?

The Great Lakes Water Quality Agreement was created

Human Development

The greatest threat to wetland habitats in the Great Lakes region

Habitat

A natural environment in which a plant or animal lives

Which U.S. city sits next to the Great Lakes?

Chicago

Runoff

Could cause a toxic chemical in the soil to make its way into streams and lakes

Which of the following is true about the Great Lakes ecosystem?

It has the largest freshwater ecosystem in the world

Which of the following is NOT one of the Great Lakes?

Lake Maine

What was the result of the new laws to protect the Great Lakes?

PCBs and DDT in the food chain declined

Which of the following species have been introduced to the Great Lakes to reduce the invasive species of alewives?

Pacific Salmon

Non-point-source Pollution

Pollution that does not come from a single location

Asian Carp

This invasive species poses a huge threat to native species as well as boaters and water skiers

Which of the following is true about drinking water?

Unsafe drinking water can carry deadly diseases

Watershed

Watersheds include all land and waterways that drain into a body of water