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Vocabulary Focus

A Match the words with their correct definitions.

colorless gas in the air which is
1 convenient • • a
necessary for life

2 fertilizer • • b an area built up by garbage

easy, useful, or suitable for a particular
3 landfill • • c
purpose

to flow slowly through small holes or
4 excess • • d
spaces

more than is needed, desired, or
5 seep • • e
required

6 oxygen • • f chemicals that help plants grow better

B Choose the correct words to fill in the blanks.

convenient excess fertilizer oxygen landfills seeps

1 are filling up fast because of the garbage people produce.

2 used in agriculture can cause water pollution.

3 fertilizer can cause water pollution.

4 When algae decay, they use the that other animals and

plants need.

5 Plastic cups and bags can make our lives more .

6 Waste material into the ground and pollutes the land.

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