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WorksheetsFRESHWATER RESOURCES
Total questions: 25
Worksheet time: 17mins
Name
Class
Date
1.
The largest percentage of indoor household water use is
a)
bathing and showering
b)
toilet flushing
c)
laundry
d)
washing dishes
2.
2/3 of freshwater on Earth is "locked away" in what water source location?
a)
atmosphere
b)
rivers and lakes
c)
underground
d)
ice and glaciers
3.
what is one way you can conserve water?
a)
take shorter showers
b)
drink a lot of water
c)
water your lawn daily
d)
keep your faucet running
4.
The salt in ocean water comes from _____ or rain water that flows over the land without sinking into the soil.
a)
Runoff
b)
Showers
c)
Salt streams
d)
Whales
5.
Chemicals that are intended to kill insects but may damage crops are known as
a)
fertilizers
b)
pesticides
c)
sludge
d)
sewage
6.
___________is wastewater and the different kinds of waste found in it.
a)
sludge
b)
acid rain
c)
pollutant
d)
sewage
7.
What is a result of sulfur and nitrogen reacting with water in the atmosphere?
a)
alum
b)
pullution
c)
filtration
d)
acid rain
8.
What may be added to drinking water to kill harmful bacteria?
a)
chlorine
b)
pesticides
c)
fertilizers
d)
alum
9.
What is the process that occurs when particles in water clump together onto flocs?
a)
coagulation
b)
evaporation
c)
precipitation
d)
desalination
10.
______________ is a measure of the substances in water besides water molecules.
a)
water shortage
b)
water demand
c)
water power
d)
water quality
11.
What is A?
a)
Evaporation
b)
Condensation
c)
Precipitation
d)
Runoff
12.
Approximately what percentage of Earth's water is SALT water?
a)
97 %
b)
71%
c)
30%
d)
3%
13.
A stream that runs into a river is known as a
a)
Porosity
b)
Tributary
c)
Stream Run
d)
Runoff
14.
The land area that supplies water to a river system is called a
a)
water table
b)
trailer
c)
house
d)
watershed
15.
Which is the opposite of condensation?
a)
runoff
b)
evaporation
c)
precipitation
d)
transpiration
16.
Pesticides are most likely to be found in runoff from
a)
roads
b)
farm fields
c)
homes
d)
factories
17.
Which country uses the most freshwater per person?
a)
India
b)
United States
c)
Mexico
d)
China
18.
pollutants entering waterways from a general area, such as runoff from farmland or suburban communities
a)
Pollution
b)
Point Source Pollution
c)
Non-point Source Pollution
d)
Turbidity
19.
How could pesticides get into lakes and streams?
a)
too much could be used
b)
it could be sprayed too close to a stream
c)
rain could wash pesticides into a stream
d)
all of the above
20.
pollution from a definable source
a)
Pollutant
b)
Pollution
c)
Non-point Source Pollution
d)
Point Source Pollution
21.
Water with high turbidity
a)
is cloudy and hard to see through
b)
is clear
22.
High turbidity indicates poor water quality because
a)
it clogs the gills of aquatic animals and makes it difficult to breathe
b)
it makes it hard for sun to get to the aquatic plants
c)
it makes it hard for aquatic animals to find their food
d)
all are reasons high turbidity indicates poor water quality
23.
Temperature, turbidity, and suspended sediment are all
a)
chemical indicators of water quality
b)
physical indicators of water quality
c)
biological indicators of water quality
d)
not indicators of water quality
24.
Which of the following is NOT a desired effect in streams?
a)
a pH of about neutral
b)
low salinity
c)
high temperature
d)
low nitrates
25.
Which is NOT a source of nitrates entering streams?
a)
leaky septic tanks
b)
cow manure and goose droppings
c)
sewage plant wastewater
d)
they are all sources of nitrates
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