steep-ided lowland

lots of trees and rainfall

area where oceans touches the land

natural raised land

tower of rock formed by the collision of tectonic plates

low lying area with stretches of flat or gently rolling land

flat area higher than land around it

natural formation of underground rock

artificial lakes that store water

small streams or river

can be replaced after used

cannot be replaced after used

brought over as slaves

speed of growth

portion of population at each age

movement of people from one country to another

first americans

people that came from mexico

branch of geography