Human Effects on Water

Waste or other materials is added to water so that it is harmful to organisms that use it or live in it

• Eutrophication

• Reservoir

• Water Pollution

• Potable

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

The image is an example of what type of pollution. Look at the picture carefully

• Point-Source Pollution

• Non-Point Source Pollution

• Thermal Pollution

Choose two reasons that might threaten our water supply.

• Droughts

• Overpopulation

• Typhoon

• Flooding

Tags

NGSS.MS-ESS3-2

NGSS.MS-ESS3-4

Over the years, a farm area becomes more populated. Which of the following will most likely happen in the town as a result of this urbanization?

• amount of rainfall will increase

• rivers may be contaminated by sewage

• Light pollution in the town may decrease

• people will develop more farms in the town

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

A student's model of an area near a city depicts many activities that affect the quality of the water in the area. How does the agricultural activity most likely affect the surface water of the area?

• Excess crop fertilizer is carried off by runoff into the river, causing excess growth of water plants.

• Excess crop materials accumulates on the riverbanks slowing the movement of the river water.

• Crops reduce erosion, increasing the amount soil entering the river.

• Crops absorb pure water from the soil, causing the remaining water to contain more salt.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

The introduction of chemical, physical or biological agents into the water is

• Water Pollution

• Potable Water

• Desalination

• Population

Tags

NGSS.MS-LS2-1

How can humans protect water quality?

• Clear the land for new homes.

• Conserve water and reduce pollutants.

• Increase erosion.

• Throw trash out of the window.

Tags

NGSS.MS-LS2-5

Water pollution is normally a result of natural processes.

• true - nothing can be done about the increase in pollution

• false - human activity greatly impacts the quality of water negatively

• true - most pollution is caused by marine life

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-5

Eutrophication or Algal Bloom is caused by...

• fossil fuel burning in power plants.

• automobiles burning fossil fuels.

• over fertilizing farm fields.

• limestone rocks in a body of water.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Eutrophication is defined as a change that occurs to an aquatic ecosystem. This change is mainly due to what?

• Newly introduced fish

• Depletion of the ozone layer

• Increased nutrient concentration

• Increase in atmospheric carbon dioxide.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4