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

• Habitat

• Environment

• Ecology

________________ is a substance used by oysters, lobsters, and countless other marine organisms to form shells.

• Sodium chloride

• Calcium carbonate

• Calcium sulfate

The plants, animals and other organisms that live in the saltwater of the sea or ocean are called ______________

• Marine life

• Wildlife

• Forest life

What is the affect of mining on the wildlife?

Mention one example of water pollution caused by fossil fuels

Fossil fuels produce large quantities of ______________ when burned.

• Oxygen

• Carbon dioxide

• Nitrogen oxide

Carbon emissions change our atmosphere. Explain.

When we burn oil, coal, and gas, we change the ocean’s basic chemistry, making it more _________

• acidic

• neutral

• salty

As the acidity in our waters goes up, the amount of __________________ in marine organisms goes down

• calcium carbonate

• sodium carbonate

• potassium carbonate

How can low calcium carbonate in marine organisms affect the environment?