9th Class Science Natural resources Question Bank 9th CBSE Science Natural resources

  • question_answer
      What is meant by water cycle? How are nutrients from land made available to marine organisms by this cycle?

    Answer:

            The whole process in which water evaporates and falls on the land as rain and later flows back into the sea via rivers is known as the water cycle.      Water is capable of dissolving a large number of substances. When it flows over rocks containing soluble minerals, some of them get dissolved in water. Since, the rivers carry many nutrients from the land to sea. These nutrients are utilised by marine organisms.


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