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- 1. Multiple Choice
Excessive amounts of nitrates and phosphates in water can lead to this
Putrification
Eutrophication
Toxicity
Salinity
- 2. Multiple Choice
The pH scale ranges from
1-7
7-14
0-14
2-4
- 3. Multiple Choice
Radar is a method of detecting and locating underwater objects using reflected sound waves.
True
False
- 4. Multiple Choice
Check all that are contributing factors in eutrophication
Excessive amounts of nitrates
Excessive amounts of phosphates
Algae bloom
High salinity
- 5. Multiple Choice
Any substance with a pH higher than 7 is a base
True
False
- 6. Multiple Choice
Check off all that are physical properties of water
Salinity
Temperature
Turbidity
Potability
- 7. Multiple Choice
Dissolved oxygen levels are an important indicator of the
breathability of the water
health of the water
salinity levels in the water
microorganisms present in the water
- 8. Multiple Choice
Neutral water has a pH of
4
5
6
7
- 9. Multiple Choice
Water temperature determines the types of organisms that can live in ecosystems since individual organisms have
preferred temperature ranges
preferred food types
a range of pH levels
likes and dislikes
- 10. Multiple Choice
Warm water dissolves and holds more solid substances and more dissolved gases.
True
False
- 11. Multiple Choice
Eutrophication is healthy for most all ecosystems
True
False
- 12. Multiple Choice
As density increases, the amount of salts in the water—also known as salinity
increases
decreases
stays constant
- 13. Multiple Choice
A golf course spread nitrate fertilizer all over the greens right before a large rainstorm hit. Much of the fertilizer was washed into a nearby pond. What most likely happened next?
Everything in the pond died immediately.
The fish, algae, and snails in the pond were so happy they had a party!
The excessive amount of nitrates caused the algae population to explode (bloom) which resulted in oxygen deprivation for the fish in the pond.
No change.
- 14. Multiple Choice
Phosphates enter water systems by all the following except
manure runoff from farms
human and animal waste
laundry detergents
motor oil
industry discharge
- 15. Multiple Choice
Nitrates and Phosphates are chemical compounds that are needed for organisms to survive and (check all that apply)
photosynthesize
create DNA
sleep
distribute energy
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