Unit 7.5

When rising water causes______, animals have to move to dry land.

• habitat

• fire

• flood

• erosion

When there is not enough rain. __________can hurt crops.

• flood

• drought

• erosion

• fire

A change in the environment can cause an animal to lose its_____.

• habitat

• drought

• flood

• ecosystem

Shorelines and beaches are worn away by_____.

• drought

• flood

• fire

• erosion

One positive effect of ______is that some pinecones only open after being heated.

• drought

• fire

• flood

• erosion

Fire forces animals to leave, but it also makes space for

• environment

• new growth

• disease

• biodiversity

Plants and animals are made sick by

• disease

• fire

• flood

• new growth

A beaver building a dam is an example of how animals affect the_____

• population

• fire

• environment

• biodiversity

People can cause _____of air, water, and land habitats.

• erosion

• biodiversity

• pollution

• new growth

Changing the variety of plants and animals in an ecosystem change its _____, which affects resources available for human use.

• biodiversity

• pollution

• environment

• fire