Landfills

• In landfills they compact the waste so it can fit in a smaller space.

• Bacteria helps break down the waste.• Landfills take up a lot of room. • When rain water falls on the waste it absorbs

chemicals. These chemicals mix with the water and form a polluted liquid called leachate. This mixture can pollute streams or lakes.

IncinerationAdvantages of incinerating wastes are:

-it makes the waste 90% smaller

-it produces its own energy

Disadvantages of incinerating wastes are:

-it cost too much money for a city to get

-even the best incinerators produce some pollution

Recycling

-Recycling is the process of reclaiming raw materials and reusing them.

-When a material is biodegradable it means that the material can be broken down by bacteria or other decomposers

(ex. Newspaper, some soap)

Recycling Metal

• Aluminum can be reused over and over and never lose its volume or strength.

• Recycling metal can help conserve our resources and cause less pollution then making it from scratch.

Recycling Glass

• Recycling glass costs less money than making new glass.

• Glass can be recycled many times. And it doesn’t cause much pollution.

Recycling Paper

• When you recycle paper every time it gets a little rougher, weaker, and darker.

• Paper products are made from pulp.

• Pulp is a dry fibrous material prepared by chemically or mechanically separating fibers from wood or fiber crops.

Recycling Plastic

• Resins are solid materials that are formed from when oil is refined to make gasoline or other materials.

• Resins can be heated and stretched into plastic products.