Hurricane Katrina and Aquatic Ecosystems

The video discusses aquatic ecosystems, highlighting the distinction between saltwater and freshwater zones. It explains abiotic factors like salinity, temperature, and sunlight that influence aquatic life. The types of aquatic organisms, including plankton, necton, and benthos, are explored. A case study on Hurricane Katrina's impact on New Orleans is presented, detailing the city's vulnerability and response to the storm.

Which of the following is NOT one of the four main areas of the global ocean?

• Atlantic Ocean

• Indian Ocean

• Pacific Ocean

• Mediterranean Sea

Which aquatic life zone is known for having the highest biodiversity in the ocean?

• Estuaries

• Inland Wetlands

• Coral Reefs

• Coastlands

What abiotic factor is measured in parts per million in aquatic ecosystems?

• Water temperature

• Salinity

• Sunlight

• Turbidity

Which type of aquatic life form includes organisms that are free-floating and weakly swimming?

• Decomposers

• Benthos

• Nekton

• Plankton

What are the main decomposers in aquatic ecosystems?

• Protozoa

• Algae

• Bacteria

• Fungi

What natural disaster is the focus of the case study discussed in the podcast?

• Hurricane Camille

• Hurricane Harvey

• Hurricane Katrina

• Hurricane Sandy

What structure is used to protect New Orleans from ocean surges?

• Sea walls

• Levees

• Floodgates

• Dams

What was the category of Hurricane Katrina when it formed in the Gulf of Mexico?

• Category 4

• Category 3

• Category 5

• Category 2

What percentage of the metropolitan area evacuated before Hurricane Katrina made landfall?

• 90%

• 60%

• 70%

• 80%

Which U.S. President declared a state of emergency ahead of Hurricane Katrina?

• Barack Obama

• Donald Trump

• Bill Clinton

• George W. Bush