Quarter 3 Test PREP

• Land area

• Food availability

• Natural resources

• Income level

• Transportation

• Culture

• Availability and quality of jobs

• How can we in the USA affect world population?

• By teaching and helping poor countries to improve their standard of living.

• How many people per year were allowed to immigrate to the US before 1970?

• About 250 thousand people a year in modern times.

• How many people per year are allowed to immigrate to the US now?

About

1 Million people

per year

• How has the number of immigrants living in the US changed since 1970?

• Immigrants have increased from 9.6 million to 26.3 million since 1970.

•How quickly is the immigrant population growing in the US?

• The immigrant population is growing 6.5 times faster than the native-born population, slightly over 4 percent per year compared to .6 percent per year for natives

• Does the US immigration policy help poorer countries to prosper?

• Not much. There are over 3 billion impoverished people in the world and growing. We can’t take in enough to make a serious difference.

• How are immigrants faring in this country?

• Immigrants and their U.S.-born children account for one in five persons living in poverty (22 percent).

• They are doing better than in their homelands, but still are in rough shape by our standards

• Why do so many immigrants have a hard time in this country?

• Language difficulties

• Cultural difficulties

• Lack of education

• Lack of good jobs

• Employer abuse

• Location, location, location

•How can human culture affect the environment?

• When a culture results in growth or lifestyle that depletes the environment, the environment becomes degraded and less able to support as many people in the future

• Can a degraded environment affect human health?

• Our environment is what allows us to survive!

• When the environment suffers, eventually we suffer as well

• What sorts of things go wrong when the environment suffers?

• Lack of food

• Lack of clean water

• Germs that mutate faster than science can keep up

• Dirty air harming the lungs

• Lack of energy

• .

• .

• .

“The Tragedy of the Commons,”

• Why do shared resources become depleted when the same number of people can have separate resources and not deplete them?

• People tend to take better care of their resources when they know that abusing them will result in harm to themselves.

• What does supply and demand have to do with our environmental problems?

• Scarcity drives up demand, resulting in a larger profit.

• Larger profits encourage people to deplete resources without regard to future needs.

• Why do companies and people in a community see the costs and benefits of pollution control differently?

• Companies are in business to make maximum profit. Environmental controls cut into that profit.

• People want to live long and prosper. In the presence of too much pollution, they will do neither

• The price is not being paid by the people

• What population pressures are caused by large and quickly growing populations?

• Governments cannot keep up with the needs of the growing population.

• Medical

• Roads

• Water, sewer, electric

• Police & Fire departments

• Food, shelter & jobs

What is an ecological footprint?

• The amount of land needed to support each member of a society

How does the US footprint compare to that

of India?

The US footprint is the largest in the world, and is unsustainable if the rest of the world uses as much resources as we do.

Why is our standard of living unsustainable?

• We are using resources faster than new ones can be developed.

• What happens when our fresh water supply becomes smaller?

• Water is unavailable for:• Industry

•Food production

•Wild plants and animals

•Drinking

• What happens when the food supply becomes smaller?

•Starvation

•Disease

•Wars

• Explain how lack of firewood can cause disease and high death rates.

• Explain how lack of water causes an increase in disease?

•How are plastic bags and balloons dangerous to sea turtles?

•They think they are jelly fish and eat them, which clogs their intestines

•Why are so many things packaged in plastic packages?

•Convenience

•Theft control

•Appearance Sells!

•What are some reasons for cutting down on plastic waste?

Harms Wildlife

Uses OIL to make it

Long time to break down

When it breaks down it leaches toxins

•What are 3 ways of disposing of garbage?

•Bury

•Burn

•Recycle

•Why do landfills have pipes sticking out the top?

•To take methane from trash decomposition out of the landfill

• Why is methane a problem?

• It can get into basements and explode

• It is a potent greenhouse gas

•What is done with the methane?

• It is burned or sold for fuel

• Why do landfills have to be guarded 24/7?

•To stop illegal dumping of toxic waste

• Why do we put a layer of clay on both sides of the butyl rubber liner?

• To make sure it doesn’t get punctured and leak

• Clay adds another layer of protection against leaks.

• Why is water such a concern in a landfill?

• It leaches toxins out of the waste and can then leak into the ground water.

• Why are we concerned with waste leaking from an ordinary landfill?

• Even ordinary landfills leak unknown toxins.

• What is a hazardous waste landfill?

• A landfill with extra precautions against toxins escaping.

•Why is recycling necessary?

• Saves space in the landfill

• Saves natural resources

• Saves money

• Keeps toxins from leaching out

•What is single stream recycling?

• Recycling where glass, plastic and paper are separated at the recycler instead of by the consumer

•What should be recycled?

• Everything we can!

• Glass,

• Plastic,

• Cans,

• All metals

• Electronics

• Car parts

• Paper products

• Yard waste

• And much more

• What cannot be thrown in the regular trash?

• Poisons

• Paint

• Nail polish and remover

• Oil

• Gasoline

• Flammables

•Why do we have to be careful where we place landfills?

• They must have solid ground

• Water must not drain toward them

• Must have good roads

• Can’t have too many houses nearby

• Water table can’t be too high

• What are Plastic Bags and balloons most likely to kill?

• Sea Turtles

• What are small bits and pieces of plastic most likely to kill?

•Sea Birds

• How do 6 pack rings and loops of netting kill sea life?

•Strangles them

• What is leachate?

• Water that filters through a landfill and absorbs chemicals along the way

• Why is leachate drained or pumped out of landfills constantly?

• If it builds up it can leak into the ground water

• What is done with the leachate?

• It is pumped out, purified and released

• Why can’t plastic bags be recycled in single stream recycling?

•They jam up the sorting machinery

•So how do we recycle plastic bags?

• Many stores have recycle bins for them

•What is the most important reason methane is collected from the landfill?

• Keeping nearby houses from blowing up

• What is the MOST IMPORTANT reason landfills built so high out of the ground?

•Water rolls off steep hils rather than sinking in.

•What is the main purpose of a landfill?

•They isolate trash from the environment

• What is the MOST IMPORTANT reason that burning trash in incinerators can be a problem ?

• The ash that is buried is often more toxic than the trash.

• Why are monitoring wells always placed outside the boundaries of land fills?

• To make sure toxins aren’t leaking into the ground water

• How long should closed landfills be monitored?

• They are more likely to leak with each passing day!