airSmog from factories can pollute the AIR.

climateA tropical CLIMATE is typically hot and wet throughout the year with

heavy, frequent rainfall.

earthquake

An EARTHQUAKE can cause major damage to and ecosystem.

landform

landslide

mountain

natural resource

plainbison grazing on the Great PLAINS in

the Midwestern United States

precipitation

drizzle rain sleet dry snow wet snow

rain gauge

valley

Death Valley National ParkCalifornia & Nevada, USA

Schroters Valley on the Moon, photographed by Apollo 15

weather

weathering

wind vane