Question

science question and answer for class 8

Answer 1

•What is sound?
•What is frequency?
•What is IVF? Explain whole process?
•How sex determination is done?
•What are gonads?
•What is pitch?
•How loudness determines the pitch?
•How coal and petroleum is formed?
•What is destructive distillation?
•What is frictional distillation?
•How friction is a friend and foe?
•What is friction how is it useful and what is its importance?
•Name some green house gases?
•Explain GAP?
•What is GAP?
•What is fertilization?
•How twins and triplets formed?
•Give full form of GAP,GHE,SPM,LPG?