Front

extinct

Back

Something that no longer exists.

Front

imbalance

Back

When parts are not in an equal, steady, or secure position.

Front

ripples

Back

Forms small waves.

Front

crumbled

Back

To break into small pieces.

Front

droughts

Back

Long periods of dry weather without rainfall.

Front

ecosystem

Back

A community of living organisms and their environment.

Front

fragile

Back

Easily broken or damaged.

Front

conservation

Back

The protection and preservation of natural resources.

Front

habitat

Back

The natural home or environment of an animal, plant, or other organism.

Front

biodiversity

Back

The variety of life in the world or in a particular habitat.