Ocean Habitats and Ecosystems Quiz

What is an ecosystem?

• A type of ocean current

• A specific type of plant

• A community of living organisms interacting with their environment

• A place where only plants live

Which section of the literal zone is always underwater?

• The cliffs

• Beyond the high tide line

• The beach

• The shallow water area

What type of water is found in estuaries?

• Freshwater

• Saltwater

• Brackish water

• Distilled water

What do kelp forests provide for marine creatures?

• Neither food nor shelter

• Both food and shelter

• Only shelter

• Only food

What causes hydrothermal vents to form?

• Volcanic eruptions on land

• Tectonic plates moving towards each other

• Tectonic plates moving away from each other

• Earthquakes

What are coral reefs made of?

• Sand and rocks

• Small animals called polyps

• Seaweed

• Large plants

Which ocean feature is an extinct volcano?

• Mangrove swamp

• Seamount

• Coral reef

• Hydrothermal vent

What makes mangrove swamps unique compared to other plant habitats?

• They can cope with high levels of salt and low levels of oxygen

• They only grow in freshwater

• They are found in cold climates

• They do not provide any benefits to humans

What is the bottom of a lake, river, sea, or ocean called?

• Demersal zone

• Benthic zone

• Estuary

• Literal zone

Which zone is the layer of water just above the seafloor?

• Estuary

• Demersal zone

• Literal zone

• Benthic zone