Human Interaction with Ocean Environments

Which of the following is an example of a natural pollutant?

• plastic

• pesticides

• volcanic debris

• oil from motorboats

Which of the following is true of toxicity?

• Toxicity is a problem only for marine environments.

• If an element is toxic for one species, it is toxic for all.

• Some species will be more impacted by a toxic element than others.

• In the event of an oil spill, all the places it reaches will be equally toxic.

Tags

NGSS.HS-LS2-6

NGSS.HS-LS4-5

Bioaccumulation makes substances particularly dangerous because

• they are processed in the digestive system.

• they will break down in environments over time.

• they will remain in the organisms that consume them.

• it is a problem for those at the lowest levels of the food pyramid.

How do fertilizers from agriculture get into waterways?

• runoff

• the oxygen cycle

• dust from droughts

• they are used for aquatic plants

Tags

NGSS.MS-ESS2-4

Eutrophication is caused by

• not enough pesticides

• a sudden end to pollution

• the death of a species in the ecosystem

• excessive nutrients

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

How many small pieces of trash are estimated to be in each square mile of the Great Pacific Garbage Patch?

• 1 million

• 1.9 million

• 8.3 million

• 6.2 billion

Tags

NGSS.MS-ESS3-3