Impact of Humidity on Virus Survival

Impact of Humidity on Virus Survival

Assessment

Interactive Video

Biology

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video discusses the risks of infection in office environments, particularly during winter when humidity is low. It explains how aerosols, formed by droplets from infected individuals, can spread viruses through the air. The video highlights the importance of maintaining optimal humidity levels (40-60%) to deactivate viruses, while low humidity increases infection risks by preserving virus activity. It emphasizes the need for proper humidity control to minimize illness and productivity losses.

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6 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a significant factor that increases the risk of infection in office environments during winter?

Low humidity

More sunlight

Increased ventilation

High temperature

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is the risk of infection particularly high in open space offices?

Lack of personal space

Poor lighting

Spread of infectious droplets

Excessive noise

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to aerosol droplets when they are exposed to dry room air?

They expand

They shrink

They change color

They become heavier

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the optimal range of relative humidity for minimizing virus survival in office air?

40-60%

20-30%

10-20%

70-80%

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What occurs when the relative humidity drops below 40%?

Air becomes warmer

Viruses become deactivated

Salts crystallize, preserving virus activity

Aerosols become heavier

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do dry aerosols affect viruses when inhaled?

They deactivate the viruses

They dissolve, releasing viruses onto mucous membranes

They cause the viruses to evaporate

They trap the viruses in the air