Question

what is stream lined body

Answer 1

Designed or arranged or shape something so that it can move as effectively and quickly as possible through a liquid or gas. It increases speed and ease of movement to anybody. Designed or organized to give maximumefficiency. Stream line shapes is seen in fishes, dolphin, aero plane, rockets,

Answer 2

Stream linned body is a shape that lowers the friction drag between a fluid like air and water
Friction drag is a special kind of drag