Show:
Human Impact on Water
Human Impact on Land
Human Impact on Air
Conservation and Stewardship
Natural Resources
100
What percent of Earth's water is fresh water?
3%
100
What are three of the five ways we use land?
Recreational, transport, agricultural, residential, commercial/industrial
100
What is air pollution?
Contamination of the atmosphere by pollutants from human and natural sources.
100
What is conservation?
The wise use of natural resources so that we will always have them.
100
What is a natural resource?
Any natural material that is used by humans (example: air, soil, minerals, water, petroleum, plants, animals, etc.)
200
What is the name of the government law that protects our drinking water?
Safe Drinking Water Act
200
What causes desertification?
Overgrazing by too many livestock kept in the same area.
200

What are three reasons why the atmosphere is important?

It provides gases that we need to survive It absorbs harmful radiation It keeps Earth warm

200
What is stewardship?
The careful and responsible management of a resource so that it stays clean and unpolluted.
200
What are the two categories of natural resources?
Renewable and nonrenewable
300
What is the difference between point source and non-point source pollution?
Point pollution comes from one specific site Nonpoint source pollution comes from many small sources
300

What is urban sprawl?

When urbanization occurs at the edge of a city or town.

300
What are some things that cause air pollution?
Factories, cars, wildfires, dust storms, volcano eruptions, oil refineries, etc.
300
What is one of the two ways we can preserve water resources?
1. Not waste water (conserve water) 2. Protect water (stewardship through laws, not littering, etc.)
300
What is a fossil fuel? (Definition!)
A Nonrenewable resource that formed from the buried remains of plants and animals that lived long ago.
400
What are the four types of pollution that affect water?
Thermal Pollution, Chemical Pollution, Biological Pollution, Eutrophication
400

How does deforestation lead to increased erosion?

Plant roots hold soil together. When trees are cut down, there is nothing holding the soil together. When it rains or the wind blows, the soil will erode away.

400
What is acid precipitation?
Rain, sleet, snow, or other forms of precipitation that contain acids from air pollution.
400
What are three of the six ways we can preserve land resources?
1. Preservation 2. Reforestation 3. Reclamation 4. Reducing Urban Sprawl 5. Recycling 6. Soil Conservation Methods
400
What are the two ways we use natural resources?
material resources Energy resources
500
What are the two ways water gets into our homes?
By creating water supply systems By changing the natural flow of water into reservoirs
500
How does nutrient depletion of soil happen?
When the same crops are planted over and over in the same area, the nutrients in the soil are used up.
500
What is global climate change (aka global warming)?
The overall increase of Earth's average temperatures because of the increased burning of fossil fuels and addition of greenhouse gases into the atmosphere. This increased amount of greenhouse gases trap in the Sun's heat, causing an increase in the temperature of the Earth.
500
What are two of the three ways we can reduce air pollution?
1. Energy conservation - not wasting energy 2. Through technology (or development of cleaner and renewable energy sources; not burning fossil fuels) 3. Through the government passing laws such as the Clean Air Act which limits the toxins that can be released in the air.
500
Coal, oil, and gas are all examples of what?
Fossil Fuels