Question

Which one of the following is a fossil fuel 
coal

petroleum

both 1 and 2

none of the above



please give me correct answer


next question


Choose the correct arrangement of friction force in decreasing order *

rolling , sliding, static
rolling, static, sliding
static, sliding, rolling
sliding, static, rolling


Liquid fuel used in home is
CNG
LPG
KEROSENE
WOOD



​

Answer 1

1-coal

2-static,slidi, rolling

3-LPG

Answer 2

Answer:

Which one of the following is a fossil fuel 

coal

both a and b

Choose the correct arrangement of friction force in decreasing order *

sliding, static, rolling

Liquid fuel used in home is

LPG