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jueves, 6 de diciembre de 2012

1ºESO BILINGUAL: PROBLEMS RELATED TO WATER


UNIT 3

7.- What problems are related to water today?

Find the correct term for the following definitions:

  • A shortage of water can produce this:
  • An excess of water can produce this:
  • It occurs when large amounts of materials are added to a body of water.
  • It contains harmful chemicals such as sulphur and nitrogen.

Complete the gaps:

___________ contains harmful chemicals such as sulphur and nitrogen. These ____________ are released into the atmosphere as _________. They undergo a chemical _______________and are absorbed by the water in ____________. They become part of ___________ and enter in the _____________________.


Make a diagram of the adverse effects of the rainfall.

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