Landforms

This picture shows a high flat land. It's a ___________.

• mountain

• plateau

• hill

A ________ is a low landform between two steep cliffs.

• canyon

• mountain

• valley

(a)   is a part of Earth's surface that has a certain shape and is formed naturally.

_______ have both positive and negative effects on the environment.

• Fires

• Flood

• drought

No rainfall can cause a _________

• flood

• erosion

• drought

People affect the environment when they use __________.

• resources

• flood

• air

Beavers change the environment when they build their shelters. They _________

• They can add nutrients to the soil

• They can make a lake in the river

• they destroy animals habitats.

______ is when small pieces of rock are carried away by water and wind.

• Flood

• Drought

• Erosion

Earth's _______ is at the center of the Earth.

• crust

• mantle

• outer core

Earth's inner core is a ball of _________.

• solid rocks

• solid metals

• liquid metals