NEW
Font size
WorksheetsHuman impact on water resources
Total questions: 20
Worksheet time: 10mins
How much freshwater is available?
20%
3%
1%
54%
How much salt water covers the earth?
23.7%
80%
71%
54.5%
Where does water vapor exist?
Rivers and lakes
The atmosphere
Ice caps and glaciers
All of the above
what is one way humans pollute water?
chemical waste from factories is sometimes dumped into rivers and lakes
driving cars
swimming in the ocean
dumping their pet gold fish in a lake
What is an algal bloom
bacteria in water
the rapid growth of a population of algal
algae on rocks near a river
the rapid growth of bacteria
What sector uses the largest amount of fresh water?
Household
Agriculture
Industrial
Transpiration
What house hold process uses the most water?
Flushing the toilet
Taking a shower
Running sink water
Laundry
What is fertilizer?
a substance that kills bacteria
a substance that reduces the growth of crops
a substance that provides nutrients to help crops grow better
cow manure
what is an aquifer?
a body of rock or sediment that stores groundwater and allows the flow of groundwater.
stores water to be used for water vapor
groundwater
allows the flow of water from rivers or lakes
T/F- Developing countries use more water than developed countries?
True
False
Which is a way to conserve water?
Plant only one type of plant like grass
Discard all water collected in your gutters
Utilize gutters and rain barrels to collect rain water
All of the above
What type of irrigation is most efficient?
Flood irrigation
Drip irrigation
Spray irrigation
Furrow irrigation
What is a pollutant?
a substance that causes harm to the environment
bacteria
a virus that effects the environment
pollen
Which of the following is NOT a primary source goal of a dam or reservior?
produce electricity
clean the water supply
reduce down stream flooding
supply water for irrigation
Experts suggest that world wide ________, of the water people use is wasted through evaporation, leaks, and other losses.
99%
50%
66%
25%
Desalination produces large amounts of ______ ?
dissolved oxygen
bacteria
salt
waste
What is turbidity?
a measure of how polluted water is
a measure of how much bacteria is in rivers
a measure of how much salt in water
a measure of how clear the water is
water in spaces between rock, soil, and gravel, is called what___?
soil moisture
perched water
groundwater
soil aquifer
Does water quality need to be monitored?
yes
no
sometimes
every month
Why is freshwater a limited source?
people do not need fresh water
most of earth water is covered in fresh water
a small percentage of liquid fresh water is found on earth
humans use salt water more
