Q14. Explain the following terms.

      a.   Rotation


      b.   Revolution


      c.   Orbital Plane


      d.   Circle of illumination


      e.   Leap year


      f.    Equinox


Q15. What would happen if the earth did not rotate?


Q16. Why do we have leap year?


Q17. Differentiate between Summer Solstice and Winter Solstice.




Last modified: Thursday, 17 January 2019, 2:38 PM