Water Pollution and Contaminants

Water Pollution and Contaminants

Assessment

Interactive Video

Created by

Olivia Brooks

Science, Biology, Chemistry

7th - 12th Grade

Hard

The video tutorial discusses various water pollutants, including visible ones like garbage and less obvious ones such as sediment, nutrients, chemicals, and pathogens. Sediment pollution is caused by erosion and affects water quality by blocking sunlight and carrying other pollutants. Nutrient pollution, primarily from nitrogen and phosphorous, leads to algae blooms and oxygen depletion, posing risks to aquatic life and human health. Chemical pollutants, including industrial chemicals and household toxins, are regulated by the EPA but still pose significant risks. Pathogens, originating from sewage and animal waste, are highlighted as a major health threat if not properly treated.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT considered a serious water pollutant?

Pathogens

Garbage

Sediment

Nutrients

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary cause of sediment becoming a pollutant in waterways?

Overfishing

Erosion

Urbanization

Deforestation

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does sediment in water affect aquatic life?

It increases water temperature

It blocks sunlight

It provides nutrients

It reduces water flow

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens when there is an excess of nitrogen in water bodies?

Water becomes acidic

Algae blooms occur

Water becomes clearer

Fish population increases

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a potential health risk of high nitrate levels in drinking water?

Asthma

Diabetes

Heart Disease

Blue Baby Syndrome

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following chemicals is NOT commonly regulated by the EPA?

Mercury

PCBs

Lead

Caffeine

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a significant source of chemical pollutants in households?

Furniture

Textiles

Cleaning products

Cooking oils

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main concern with emerging contaminants in water?

They are easily detectable

They are not traditionally tracked

They are harmless

They are beneficial to aquatic life

9.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are pathogens?

Nutrient-rich substances

Disease-causing bacteria and viruses

Chemical compounds

Sediment particles

10.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a major source of pathogens in water?

Industrial waste

Human sewage

Agricultural runoff

Air pollution

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