Front

crumbled

Back

broke into smaller pieces

Front

ripples

Back

forms small waves

Front

extinct

Back

no longer exists

Front

ecosystem

Back

all the living and nonliving things in an area

Front

fragile

Back

delicate and tends to break easily

Front

droughts

Back

long periods of time without rain

Front

imbalance

Back

a lack of proportion or harmony between things

Front

flourished

Back

to grow or develop in a healthy or vigorous way

Front

environment

Back

the surroundings or conditions in which a person, animal, or plant lives

Front

habitat

Back

the natural home or environment of an animal, plant, or other organism