Question

science 8th class plz answer correctly....
write it on ur rough notebook then click a picture of it and then post .​

Answer 1

Explanation:

2.Kilojoule / kilogram

3.LPG : LIQUIFIED PETROLEUM GAS

CNG: COMPRESSED NATURAL GAS

4.Because they don't provide enough friction and there is maximum chance that a vehicle with worn out tyres would skid off the road .

5.It is because this will help the fluid i.e air and water will easily flow around them and such objects will move easily with least friction

6.The powder fills the irregularities / gaps of the board ,thereby decreasing the friction which inturn makes the coin move faster.