Vocab 1
Vocab 2
Vocab 3
Vocab 4
100

a stream or small river that drains into a larger river

Tributary

100

plants that cover a particular area

vegetation

100

to set someone or something free

liberate

100

an effort by many people to change the government

rebellion

200

farming that provides enough food to live on

subsistence farming

200

the process by which plants and trees release water vapor into the air

transpiration

200

having flat areas on the side of a hill or mountain, used to grow crops

terraced

200

an official agreement made between two or more countries or groups

treaty

300

a dry region on the downward side of a mountain range

rain shadow

300

to change something so it functions better

adapt

300

someone who is related to peoples who lived in the past

descendants

300

a geographic feature that stretches nearly the width of South America

Amazon Basin

400

the continuous movement of air or water in the same direction

current

400

to carefully uncover something by digging away and removing the earth that covers it.

excavate

400

an object made by people in the past

artifact

400

This can cause flooding in South America that can damage roads, crops and homes

El Nino

500

a gas that absorbs heat energy and warms Earth's atmosphere

greenhouse gas

500

the complete control of the entire supply of goods

monopoly

500

a member of a group of people who move from place to place

nomad

500

The study of the Earth and everything on it

Geography