Gap Fill - Volcanoes - Level 4

HOW TO PLAY:

  • Choose the correct word from the drop-down menus below.
  • Click the button at the bottom to check your answers.
  • Press the "refresh" button on your browser to play again.
  • After this paragraph, go to Paragraph 2.

   active      centuries      changes      closer      forecasts      increase      scientists      surrounding      unreliable      volcanoes   

Paragraph 1

For , scientists have been predicting when will erupt. This has been pretty . However, a study from in the USA say they are a step to more accurate . They used images from space to detect in the colour of leaves near volcanoes. The scientists found an in carbon dioxide levels emitted by two volcanoes in Costa Rica. This changed the colour of trees in the areas.

Now go to   Paragraph 2.

Back to the volcanoes and trees lesson.

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