Unit 2 Water Quality Review

Front

What is Dissolved Oxygen (DO)?

Back

Dissolved Oxygen refers to the amount of oxygen that is present in water, which is essential for aquatic life.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Front

What does a pH level above 7 indicate?

Back

A pH level above 7 indicates that the water is basic (alkaline).

Front

What is the healthiest combination of water quality parameters?

Back

The healthiest combination is low temperature, neutral pH, and low nitrates.

Tags

NGSS.MS-LS1-5

Front

Which factor does NOT increase dissolved oxygen in water?

Back

Increasing temperature does NOT increase dissolved oxygen in water.

Front

What causes the Gulf of Mexico 'dead zone'?

Back

The Gulf of Mexico 'dead zone' is caused by a lack of dissolved oxygen, often due to nutrient runoff leading to algal blooms.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Front

What is the significance of pH in water quality?

Back

pH affects the solubility and biological availability of chemical constituents such as nutrients and heavy metals.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-3

Front

How does temperature affect dissolved oxygen levels?

Back

Colder water can hold more dissolved oxygen than warmer water, thus lower temperatures generally increase DO levels.

Tags

NGSS.MS-PS1-4

Front

What is the impact of high nitrates in water?

Back

High nitrates can lead to eutrophication, which depletes oxygen in water and harms aquatic life.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Front

What is eutrophication?

Back

Eutrophication is the process by which water bodies become overly enriched with nutrients, leading to excessive growth of algae and depletion of oxygen.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Front

What is the role of aeration in water quality?

Back

Aeration increases the oxygen content in water, which is beneficial for aquatic organisms.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4