Aquatic Biomes Quiz

What percentage of the Earth's water is freshwater?

• 2.5%

• 10%

• 1%

• 5%

Which of the following is not a major freshwater biome?

• Rivers and streams

• Oceans

• Lakes and ponds

• Wetlands

What is the salt content in saltwater?

• 20 parts per thousand

• 10 parts per thousand

• 40 parts per thousand

• 30 parts per thousand

What determines the direction and speed of water flow in rivers and streams?

• The type of rocks in the riverbed

• The amount of rainfall

• The slope of the landscape

• The temperature

Which of the following is true about wetlands?

• They have low species diversity

• They are not saturated with water

• They support aquatic plants

• They have high salt content

Which ocean is the largest?

• Pacific Ocean

• Indian Ocean

• Atlantic Ocean

• Arctic Ocean

What is the largest mountain range in the ocean called?

• Rocky Mountains

• Andes Mountains

• Himalayas

• Mid-ocean ridge

Estuaries are important because they help decrease the effects of which of the following?

• Tornadoes

• Flooding and storm surges

• Earthquakes

• Droughts

Which type of estuary is formed when sandbars build up along the coastline?

• Coastal plain estuaries

• Tectonic estuaries

• Bar built estuaries

• Fjord estuaries

What are estuaries called because they provide a safe environment for fish and birds to raise their young?

• Sanctuaries of the wildlife

• Habitats of the ocean

• Nurseries of the sea

• Shelters of the coast