Aquatic Ecosystems + Water Pollution QUIZ REVIEW

Saltwater biomes have around _____% salinity, while freshwater biomes have around .1%.

• 3.0

• 0.5
• 5.0
• 1.2

An area of land that channels water to a particular location is called a:

• estuary

• flood plain

• watershed

• ecosystem

Tags

NGSS.MS-ESS2-4

Choose two sources of nitrogen runoff.

• fertilizers

• plastic waste

• burning fossil fuels

• acid rain

• sewage

Tags

NGSS.MS-ESS3-4

Eutrophication is...

• nutrient pollution

• blocking of sunlight caused by algal blooms

• nutrient runoff

• excessive growth of algae

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

NGSS.MS-LS2-5

The following are steps to illustrate the sequence of events that leads to the eutrophication of a waterway. Select the best option for the FIRST step.

• Algae decays and bacteria uses up available oxygen

• Dead zones occur due to lack of oxygen

• Sunlight is blocked then algae die off

• Massive algal blooms occur

• Surface water runoff carries excess nutrients

The following are steps to illustrate the sequence of events that leads to the eutrophication of a waterway. Select the best option for the LAST step.

• Dead zones occur due to lack of oxygen

• Surface water runoff carries excess nutrients

• Massive algal blooms occur

• Sunlight is blocked then algae die off

• Algae decays and bacteria uses up available oxygen

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What are the 2 main contributors to excessive nutrients? (choose 2 answers)

• Algae Blooms

• Oxygen

• Carbon

• Nitrogen

• Phosphorus

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Swamps, marshes, and bogs are included in which freshwater biome?

• Lakes/Ponds

• Wetlands

• Rivers/Streams

A thin layer in water where the temperature changes quickly.

• Transition Layer

• Thermocline

• Thermal Layer

• Upwelling

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

• Amount of Water

• Sunlight

• Salinity (dissolved salt)

• Oxygen