1.8: Health of our Water Systems and Sources of Water Pollution

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Multiple Choice

Water is a universal solvent because it...

• It can be found anywhere
• It freezes when it gets cold
• floats when frozen
• Dissolves most substances

Multiple Choice

How much of Earth's water is salt water?

• 50%
• 66%
• 75%
• 97%

Multiple Choice

Oceans, the atmosphere, and groundwater are all ________ in the water cycle.

• Nodes

• Sinks

• Reservoirs

• Stations

Multiple Choice

Can be traced back to the point of origin.

• Point Source Pollution

• Non-point source pollution

Multiple Choice

Cannot easily be traced to the source of the pollution.

• Point Source Pollution

• Non-point source pollution

Multiple Choice

Sewage leaking from a pipe.

• Point Source Pollution

• Non-point source pollution

Multiple Choice

Fertilizer farm runoff

• Point Source Pollution

• Non-point source pollution

Multiple Choice

What is potable water?

• pure water

• Water that has dissolved ions in but is safe to drink

• Water from an underground source

• Water that is safe to wash in

Multiple Choice

How does temperature affect dissolved oxygen levels?

• Higher temperatures have higher dissolved oxygen levels.

• Lower temperatures of lower dissolved oxygen levels.

• Higher temperatures have lower dissolved oxygen levels.

• Temperature has no affect on dissolved oxygen levels.

Multiple Choice

What is dissolved oxygen?

• The property of containing salt

• The amount of suspended solids.

• The measure of the amount of oxygen that is dissolved.

• Describes how acidic or basic water is.

Multiple Choice

What can add dissolved oxygen to the water?

• Photosynthesis

• Decomposition

• Cellular respiration of animals

• All of the above

Multiple Choice

Which glass has higher turbidity?

• <--- Left Glass

• ---> Right Glass

Multiple Choice

You would want to drink water with high turbidity

• True
• False

Weekly Wrap-up #1

1. You will be placed in individual BORs today!

2. Make sure you can access GoFormative ​

3. Access Weekly Wrap-up #1 in GoFormative

   1. PLEASE DO YOUR BEST!!!!

4. SHARE YOUR SCREEN!

5. Begin working on the Weekly Wrap-up #1

   1. You may pause your assignment if needed and complete after class - you have until next Friday at 11:55 p.m.

6. Begin working on the 1.8 Student Guide if you complete the assignment

7. Raise your hand if you have any questions!​

​CLOSES NEXT FRIDAY AT 11:59 PM!!!