The Importance of Water Answers

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What is demonstrated by water moving up a straw?

A
evaporation and condensation
B
sublimation and deposition
C
cohesion and adhesion
D
precipitation and transpiration
2
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Which point(s) in the water cycle below best illustrate(s) water changing to a gas, and which term(s) could describe it?

Question illustration
A
1; sublimation or evaporation
B
1 and 2; evaporation only
C
3; precipitation or transpiration
D
3 and 4; transpiration only
3

Which statement best explains why water is known as the universal solvent?

A
Water is vital in allowing the chemical reactions for life to occur.
B
Liquid water is a medium in which biochemical reactions can occur.
C
Water can carry unreacted substances from location to location.
D
Water has the ability to dissolve more substances than any other liquid.
4

Which bonds are found inside a water molecule, between hydrogen and oxygen?

A
hydrogen bonds
B
electronegative bonds
C
proton bonds
D
covalent bonds
5

Which type of bond forms between water molecules?

A
capillary bond
B
hydrogen bond
C
covalent bond
D
polar bond
6

By which process do plants lose their water to the atmosphere?

A
sublimation
B
transpiration
C
condensation
D
precipitation
7

Which statement best explains why water is essential for all living things?

A
Water makes up 65% of human beings.
B
Water is an essential component of blood.
C
Water covers 75% of Earth’s surface.
D
Water is necessary for cellular functions.
8

Which process could cause ice to form a thin layer over a lake?

A
freezing
B
sublimation
C
evaporating
D
condensation
9

Which stores groundwater?

A
glacier
B
runoff
C
aquifer
D
lake
10

The table below shows the saturated thickness (water level) in five-year intervals.Water Levels in the Ogallala AquiferIf water continues to be used at the current rate, what will the saturated thickness be in 2020?

Question illustration
A
8–10 meters
B
10–12 meters
C
14–16 meters
D
18–20 meters
11

Which is least likely to be a reservoir for fresh water?

A
ocean
B
atmosphere
C
ice and snow
D
aquifer
12

Which statement explains why hydrogen bonds are able to form between water molecules?

A
Water molecules are polar.
B
Water molecule atoms have weak atomic bonds..
C
Water molecules show adhesion.
D
Water molecules are large.
13

Which best explains the surface tension of water?

A
capillary action
B
cohesion
C
adhesion
D
sublimation
14

Look at the data below. Water Levels in the Ogallala AquiferBased on this data, predict what will happen to the water in the Ogallala aquifer over the next decade.

Question illustration
A
The water will continue to increase.
B
The water will continue to decrease.
C
The water will remain the same.
D
The water will be completely depleted.

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