AnswersEarth and Space ScienceFreshwater vs Saltwater Properties

Freshwater vs Saltwater Properties — Quiz Answers

10 verified answers
1
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Which trend best describes the relationship between salinity and boiling point?

A
As salinity increases, boiling point remains constant at 100\ °\text{C} because boiling point is a state property.
B
As salinity increases, boiling point decreases because water evaporates more easily at high temperatures.
C
As salinity increases, there is no measurable effect on boiling point because water can evaporate at different temperatures.
D
As salinity increases, boiling point increases because dissolved salts require more energy to separate water molecules.
2
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A deep ocean water sample was found to have a salinity value of 45 g over cap l What is the sample’s most likely boiling point?

A
100.4°\text{C}
B
100.6°\text{C}
C
101.6°\text{C}
D
100.8°\text{C}
3

Choose the correct answer from each drop-down menu to complete the statement. Water from the [Dropdown 1] requires the most energy to boil because it has the [Dropdown 2] dissolved ions, which [Dropdown 3] water molecules’ ability to transition to the gaseous phase.

Answer:

hypersaline pond|greatest number of|interfere with

4

Which best explains why desalination plants must account for both density and boiling point when treating seawater?

A
Seawater density is higher, requiring less energy to pump and treat.
B
Seawater density is lower, so it evaporates more quickly.
C
The lower boiling point of seawater reduces energy costs.
D
The higher boiling point of seawater means more energy is needed for distillation.
5

Choose the correct answer from each drop-down menu to complete the statement. The [Dropdown 1] would most likely drive deep global circulation because [Dropdown 2] .

Answer:

polar sea|cold, salty water can sink and push currents

6

How does artificial aquifer recharge help address groundwater depletion?

A
It reduces demand by cutting household consumption.
B
It prevents recycling from being used as a long-term solution.
C
It adds water into aquifers, increasing underground storage capacity.
D
It lowers aquifer levels to make room for new recharge.
7

A rural area’s aquifer has been so depleted that wells can no longer reach freshwater supplies. The community understands that long-term sustainability is important, but they are willing to sacrifice some sustainability to immediately increase freshwater supplies. Which strategy best fulfills the community’s needs?

A
water recycling
B
artificial recharge
C
water conservation
D
importing water
8

Which statement best explains how combining strategies could strengthen resilience to drought?

A
Combining strategies eliminates environmental impacts and makes costs negligible.
B
Combining strategies reduces the need for other long-term water management plans.
C
Combining strategies balances tradeoffs by reducing demand and increasing supply.
D
Combining strategies shifts reliance mainly to importing water from outside sources.
9

Choose the correct answer from each drop-down menu to complete the statement. If drought conditions intensify and environmental protection becomes a higher priority, then [Dropdown 1] is least likely to be expanded because it is the [Dropdown 2] expensive solution and has the [Dropdown 3] environmental impact.

Answer:

importing water|most|highest

10

Which trend best explains why water conservation is rated as having the highest sustainability?

A
It depends heavily on distant water sources that are reliable.
B
It reduces demand with minimal environmental impact.
C
It provides the largest single volume of new water.
D
It is the most expensive option, but saves groundwater.

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