Why did the Native Americans change their environments?
To meet their needs.
Name one of the most famous dams in the United States.
Hoover Dam
What do you call the plants and animals that live in a particular place?
Ecosystem
What did Native Americans use to clear land for building and farming?
Fire
What turns the energy of moving water into electric power?
Hydroelectric Dams
A __________ is the home of an animal or a plant.
Habitat
How did Native Americans make it easier to catch fish?
They dammed rivers.
Name two things the Hoover Dam provides for people in California, Arizona, and Nevada.
Dependable water supply and generates energy.
Over time, humans have cleared a lot of land across the world. What do we call the loss of forests?
Deforestation
Name two resources from the environment that Native Americans used in order to eat?
Hunted animals, gathered wild plants, nuts, seeds and berries.
The Hoover Dam helps control the flow of which river?
The Colorado River
_____________ means a type of animal that has died out.
Extinct
How did Native Americans water their crops?
They dug canals.
_________ has made today's environmental changes even BIGGER!
Technology
_______________ means the animal is at risk of becoming extinct.
Endangered