Marine Science Review U8 Human Interactions

When oil pollutes aquatic environments, it can harm wildlife in all of the following ways EXCEPT: ​ ​ (a)  

• dropping water temperature.
• coating organisms and prey
• killing producers & plankton
• interfering with oxygen absorption

The fact that it took 87 days to stop the flow of oil from the Deepwater Horizon incident shows?

• the company was prepared for an accident

• the company was not prepared for accidents

All are results of the Deepwater Horizon oil leak EXCEPT:

• Oil well accidents harm ecosystems.

• Oil well accidents harm people.

• Oil well accidents harm industries.

• Oil well accidents harm other ships.

How can marine scientists BEST determine the level of an ecosystem’s recovery after an oil spill?

• monitor the populations of local marine organisms

• track changes in 💵revenue for local fishing industries

• measure the remaining oil on the bottom of the ocean

An excellent way to remove an oil slick in the ocean is burning it.

• True

• False

Burning an oil slick in the ocean to remove it creates a lot of dangerous air pollution.

• True

• False

Scientists can predict which organisms suffer the least / most harm in an oil incident. Match the following:

• Large sharks

• Some harm

• Oysters, mussels

• Most harm

• Fish shoals

• Least harm

An example of a natural pollutant in the ocean is ​ ​ (a)  

• volcanic gases
• fertilizers
• pesticides
• refined oil

A persistent pollutant remains in the environment for a ​ ​ (a)   ​ time.

• long
• short

Unrefined or crude oil spreads ​ (a)   quickly and refined oil spreads ​ (b)   quickly in seawater.

• less
• more