PA Envirothon Aquatics

Which of the following is a major cause of increasing ocean acidification?

• eutrophication

• construction of dams and levees

• rising sea level

• rising levels of CO₂

• decreasing dissolved oxygen

Tags

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

Which of the following is NOT a pattern of aquatic biodiversity?

• Coral reefs have a high biodiversity

• Coastal areas have a high biodiversity

• Open ocean has a low biodiversity

• The benthic, bottom regions have a low biodiversity

Tags

NGSS.MS-LS2-5

Which of the following are the two greatest long-term threats to coral reefs?

• ocean acidification and overfishing

• damage by divers and predation

• climate change and acidification

• erosion and sea-level rise

• climate change and predation

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Although they only occupy 0.2% of the ocean floor, coral reefs provide many benefits. Which of the following is not one of these?

• They provide significant free oxygen.

• They serve as natural barriers.

• They protect coastlines from erosion.

• They provide habitats for one-quarter of all marine organisms.

• They provide one-tenth of the global fish catch.

Tags

NGSS.MS-LS2-5

Match the following

• The portion of water that the light can penetrate.

• Benthic

• Bottom of a body of water.

• Photic

• The portion of water that light CANNOT penetrate.

• Aphotic

Tags

NGSS.MS-LS2-3

The littoral zone can reach depths up to _____________________ meters.

• 20

• 200

• 2000

• 100

Body of water with very little nutrients

• Upwelling

• Eutrophic Lake

• Estuary

• Oligotrophic Lake

If you find a new species of algae floating on the surface of a coastal zone, you would likely consider it a type of ____.

• benthos

• zooplankton

• nekton

• phytoplankton

• ultraplankton

Tags

NGSS.MS-LS1-6

A jellyfish would be considered a type of ____.

• benthos

• zooplankton

• nekton

• phytoplankton

• ultraplankton

Oysters, sea stars, and lobsters would be considered what type of organism?

• phytoplankton

• zooplankton

• nekton

• benthos

• decomposers