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

  • question_answer
      Explain the role of the Sun in the formation of soil.

    Answer:

                      During the daytime, the rocks are heated up by the Sun and thus they expand. Whereas, at night they cool down and thus contract. Since all parts of the rock do not expand and contract at the same rate, it results in cracking of rocks, breaking them into smaller pieces.


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