Marine and Freshwater Biomes

What is the largest marine biome on Earth?

• coral reef biome

• freshwater biome

• estuary biome

• ocean biome

What is the average salinity of seawater?

• 1.5%

• 5%

• 10%

• 3.5%

What is the main source of energy in marine ecosystems?

• tides

• wind

• geothermal energy

• sunlight

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following is a characteristic of freshwater ecosystems: high salinity, low oxygen levels, or high biodiversity?

• high biodiversity

• high salinity

• low biodiversity

• low oxygen levels

Tags

NGSS.MS-LS2-5

What is the largest freshwater biome on Earth?

• lake biome

• pond biome

• ocean biome

• river biome

What is the main source of energy in freshwater ecosystems?

• wind

• sun

• moon

• fire

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is the term for the area where a river meets the ocean?

• delta

• inlet

• lagoon

• estuary

What is the term for a body of water that is partially enclosed by land and has a connection to the ocean?

• lake

• river

• estuary

• pond

Which of the following is not a characteristic of marine ecosystems: high salinity, low biodiversity, or high oxygen levels?

• high salinity

• low biodiversity

• high oxygen levels

• low salinity

Which of the following is not a marine ecosystem: coral reefs, estuaries, or lakes?

• rivers

• lakes

• seas

• oceans