Module 3 Quiz: Water Chemistry

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When entering the stream to collect water samples, you should enter at what location?

20 points

Downstream of your sampling site and collect facing upstream

Upstream of your sampling site and collect facing downstream

Underwater

On a drone

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What water quality parameter is used to measure the acidity or alkalinity of the stream?

20 points

Conductivity

Temperature

Dissolved oxygen

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You should record the temperature of the stream water in what units?

20 points

Degrees Fahrenheit

Degrees Celcius

Calories

Parts per million

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What should you do with the conductivity meter before using it to take a conductivity reading?

20 points

Soak the meter in distilled water

Hold it upside down

Make sure that the batteries are working and it is calibrated for accurate readings

Warm it in the sunlight

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To measure dissolved oxygen, you need to complete multiple steps. Which of the following is NOT one of these steps?

20 points

Fill glass sampling bottle completely with stream water so that there are no air bubbles

Wait until an orange precipitate (solid flecks) dissolves before going to the next step

Use the titration method to observe a change in the color of the water

Read the final dissolved oxygen level from the glass sampling bottle

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