Phrases with «oxygen cycle»

Sentences with «oxygen cycle»

  • Yet what of the ecological systems that complement the earth, allowing life to exist and be enjoyed, from (1) the water cycle of evaporation and rain to (2) the carbon and oxygen cycle of plants producing oxygen that humans and animals need and giving off carbon dioxide for the plants to (3) the nitrogen cycle that causes the production of proteins? (religion.blogs.cnn.com)
  • Britton Stephens, an NCAR scientist and the project's co-principal investigator, said HIPPO flights have collected the first large - scale measurements of carbon dioxide and oxygen cycling into and out of surface waters of the Southern Ocean. (scientificamerican.com)
  • The computer modelling study by Dr. Richard Boyle and colleagues from Denmark, Germany, China and the UK, published in Nature Geoscience, links data from the fossil record to well established connections between the phosphorus and oxygen cycles. (sciencedaily.com)
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