Crossword Puzzle

Soil Formation - Missing Words Crossword!

Across

  1. __________ ___________ includes both living and decaying animals and plants. (organicmatter)

Down

  1. Soil contains gases such as carbon dioxide and _____________. (oxygen)
  2. The ___________ in soil come from finely broken down rock. (minerals)
  3. Air and ___________ fill the gaps between particles of soil. (water)
  4. Soil is the uppermost layer of the _________. (earth)

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