Tuesday, 17 February 2015

The Power of Rubish

Walt: Look beyond the text

What kind of gas is being produced by large rubbish landfills? Methane gas is a colorless, odorless gas with a wide distribution in nature.

What happens if landfills are left alone? If the gas is left alone then it will leak into the ground and into the air.

What are the two ways of dealing with rubbish landfill methane gas buildups? We can flare it or we can use it as gas.

How many homes could the Auckland landfill power with its methane gas? Methane gas from the Auckland landfill can power up about nine thousand homes.

What can the land above a landfill be used for before it can be used for methane gas?
The land can be used for a golf course or sports ground.
We are learning to try look beyond the picture and try to understand the meaning of it.

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