Class 9… 13. Carbon : An Important Element | Science | Class 9 23/01/202024/03/2020 Question 1: Select the proper option and complete the statements (single, all, double, ionic, carbon, give and take, hydrogen, multiple, share, most, covalent) a. A carbon atom forms a covalent…
Class 9… 12. Study of Sound | Science | Class 9 21/11/201924/03/2020 1. Fill in the blanks: a. Sound does not travel through vacuum. b. The velocity of sound in steel is greater than the velocity of sound in water. c. The…
Dr. Ganesh Visavale 