Human impact on water resources

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