Water Quality

Water Quality

Assessment

Flashcard

Science

8th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is Eutrophication?

Back

Eutrophication is the process by which a body of water becomes overly enriched with nutrients (like nitrates and phosphates), leading to excessive growth of algae and depletion of oxygen, creating 'dead zones'.

2.

FLASHCARD QUESTION

Front

What is the relationship between water temperature and dissolved oxygen levels?

Back

As water temperature increases, the amount of dissolved oxygen decreases. Warmer water holds less oxygen than cooler water.

3.

FLASHCARD QUESTION

Front

What is considered a healthy level of turbidity in water?

Back

Healthy levels of turbidity are generally less than 1 NTU (Nephelometric Turbidity Units). Levels above 20 NTU are considered unhealthy.

4.

FLASHCARD QUESTION

Front

What does a turbidity meter measure?

Back

A turbidity meter measures the cloudiness or haziness of a liquid, which indicates the amount of suspended particles in the water.

5.

FLASHCARD QUESTION

Front

What happens to dissolved oxygen levels during the day in a lake?

Back

Dissolved oxygen levels can drop during the day due to increased water temperature and the respiration of aquatic organisms.

6.

FLASHCARD QUESTION

Front

What are nitrates and phosphates?

Back

Nitrates and phosphates are nutrients that can promote plant growth in water bodies, but excessive amounts can lead to eutrophication.

7.

FLASHCARD QUESTION

Front

What is the significance of dissolved oxygen in aquatic ecosystems?

Back

Dissolved oxygen is crucial for the survival of fish and other aquatic organisms, as they rely on it for respiration.

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