Preference

প্রশ্নঃ Core of the earth is made of

  1. ক.
    NiFe
  2. খ.
    FePb
  3. গ.
    FeZn
  4. ঘ.
    FeMg
উত্তরঃ
comments powered by Disqus

Events

Loading....

Loading....

Loading....

Share our page