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20 Cards in this Set

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  • Back
What are 3 main uses of land? What is included in each category?
Agriculture-Food
Mining-minerals
development-building things
What are the four layers of soil? What is each layer made up of?
litter-dead leaves
top soil-rich soil
subsoil-more rocks
bedrock-rock that erodes to form new soil
What should you do to PREVENT nutrient depletion of the soil?
Crop rotation
What are the benefits of incineration?
Can reduce wastes up to 90%
What are the benefits of getting rid of wastes in a sanitary landfill?
After a landfill is filled it can be covered and turned into a park or sports arena
Relatively easy to build
The 3 Rs of recycling stand for: Reduce, Reuse, Recycle. Explain how each helps the environment
Reduce – by using less waste to begin with we have less to worry about
Reuse – if we reuse waste, we don’t have to throw it away
Recycle – if we recycle, then we don’t need to use more of a resource & we use less energy
What does biodegradable mean? Name 2 items that are biodegradable
Materials that can be broken down and recycled by bacteria
Paper, cardboard, apples, banana peels, coffee grounds,…
What are the 6 different kinds of hazardous wastes? What do they each include?
Radioactive waste – items that give off radiation
Corrosive waste – items that dissolve many substances
Everyday waste – items like paint, batteries, etc.
Toxic waste – items that are dangerous to human health
Flammable waste – items that can easily catch fire
Explosive wastes – items that can react very quickly in air or water, or explode when dropped
What are some short-term effects of coming in contact with hazardous wastes? What are some long-term effects?
Short-term: skin irritations, breathing problems
Long term: organ damage, cancer, death
How are hazardous wastes disposed of?
In a carefully designed landfill that is designed to not leak
Buried in a thick metal box
How are hazardous wastes disposed of?
In a carefully designed landfill that is designed to not leak
Buried in a thick metal box
What happens during a temperature inversion? Why is this dangerous?
A band of warm air traps pollution near the ground
The pollution is closer to the ground & doesn’t get blown away by the winds in the upper atmosphere
How is acid rain formed
Nitrogen oxides and water vapor mix together in the atmosphere
Name 3 effects of acid rain
It weakens stone buildings.
Nutrients in the soil are eroded away.
Lakes & streams become more acidic.
How many atoms of oxygen makes up an ozone molecule?
3
What does diatomic mean?
Made up of 2 atoms
) What gases are responsible for creating the ozone hole?
CFCs - chloroflurocarbons
How can ozone be helpful and harmful?
Helpful – in the upper atmosphere (ozone layer)
Harmful – at Earth’s surface (we breathe it in)
What are two ways we can reduce the amount of air pollution that comes from motor vehicles?
Carpool
Combine trips
Use city transportation – buses, subways, etc.
Use electric cars or solar cars
How is water found on Earth? What percentages is it found in?
Salt water – 97%
Fresh water (ice & lakes/ponds) – 3%
Ice – 2.3%
Liquid form – 0.7%