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What is the defining difference between the marine, freshwater, and estuary biomes?

• Salinity (dissolved salt)

• Sunlight

• Oxygen

• Amount of Water

Which aquatic biome is characterized by where rivers meet oceans?

• Marine

• Freshwater

• Coral Reef

• Estuary

When salt and fresh water mix, what is the new water substance called?

• Brackish Acid
• Fresh Water
• Salt Water
• Brackish Water

Why does the water level in an estuary rise and fall?

• ocean tides bring water in and out of the shore, causing flooding in the estuary

• rivers add new water off and on through the day

• people all flush their toilets at the same time and it fills the estuary

• lots of rain makes the flooding