genral knowledge

what is friction

• like gravity

• push

• pull

• work

• a force between for surface or contact

what is a food preservation

• sandwitch

• preserving food

• cooking

• I don't know

• a force between for surface or contact

4+1+8+9+=9*0+4

• 5

• 4

• 9

• 26

Full form of Dna

who made 0

• an indian scientist

• scientist-mayans

• oh tri

• sandwithc

• a mad scintist