Subscribe to:
Post Comments (Atom)
Class 9 heat revision questions
Second term weekly test revision questions Q1.a) what do you mean by degradation of energy? b) why a person should use bio- char stoves for...
-
Second term weekly test revision questions Q1.a) what do you mean by degradation of energy? b) why a person should use bio- char stoves for...
-
1.select the correct alternative: 1.1 In boiling: A. All molecules of liquid begin to escape out. B. Only the molecules at the surface esca...
-
1. Define the term density of substance. Ans. Mass per unit of a substance is called as its density. 2. Name the SI unit of density. How i...
No comments:
Post a Comment
Thanks