smoke poured out of the exhaust of the car.
Because it releases the carbon and buildup in your motor. That has to go somewhere. The exhaust. That smoke is just a lot of carbon buildup from your motor.
yes
from smoke from car, train exhaust, smoke from refuse burning
Car smoke or exhaust contains many toxic chemicals that are harmful to health and the ozone layer. The major chemical in car exhaust is carbon monoxide.
maybe
Depends on the color of the smoke. Blue smoke-oil. Black smoke-unburnt fuel.
if the smoke color is blue, then you are burning oil. look for an oil leak near or on the exhaust system.
its farting
Find and fix exhaust leak
In cold weather you may get some smoke in all cars on starting. If you put too much oil, it will smoke a lot and if your engine is old and consuming a lot of oil with smoke it means you need to recondition the engine or replace it
possible blown head gasket. I don't get white smoke from my exhaust! is it from yours? If it is just after you start your car it is normal.