When you say "white smoke" what do you mean? Is it... you know, like... steam?
Understand that the products of engine combustion are carbon dioxide and water vapor. If the weather is cold enough and the exhaust is cooled by a cold exhaust system, you'll see water vapor out the tailpipe. Once the exhaust pipe warms up the water vapor will still be warm enough as it exits the exhaust pipe to not be visible even though it's still present.
probably the catalytic converter- or you child is smoking in the car
You can fix black smoking on a 1995 Nissan Altima GXE 2.4L by replacing its catalytic converter.
Sounds like a plugged Catalytic converter. They plug up and won't flow through and in turn get smoking hot from the reduced flow and kill your power.
Check to see if your exhaust pipes have picked up some road trash. Check on top of the catalytic converter, too.
Most likely a faulty gasket in the oil system, a faulty catalytic converter or a faulty component in the exhaust system.
Yes, the Taurus can run without the catalytic converter--it is not necessarily good for the engine, but disconnecting it will cause it to fail emissions testing. If you've seen the Honda Civics running around smoking like a factory, this is caused by no electrolytic converter. The O2 sensor could be in the exhaust pipe between the manifold and converter.
catalytic converter stopped up
if people stop smoking then smoking can be changed
If the vehicle is smoking out of the exhaust, its not necessarily the catalytic converter. If the engine has an oil leak big enough to cause oil to be burned, it typically needs a rebuild and should be rebuilt as soon as possible. (If its smoking, this isn't a small oil leak) This can be avoided with regular maintenance as these problems are common on poorly maintained vehicles. If the catalytic converter is plugged its highly advised the vehicle not be driven until it can be replaced, however if what you describe is excessive smoking, the vehicle should not be driven too long in its state as you risk destroying the engine entirely. If it is absolutely nessecary, take frequent breaks, and monitor your oil level. If oil is dripping onto the catalytic converter and is burning off causing smoking, you should be fine, just continue to monitor the oil level, and be wary of a fire that can start due to high temperatures and a flammable medium. If you chose to continue to drive the vehicle in that state, its at your own risk.
Is it water ( condensation ) or is it antifreeze. If it is antifreeze it should be smoking WHITE out of the exhaust pipe and if it is then you have either a blown head gasket or a leaking Intake manifold gasket.
b. Because scientists found smoking causes cancer
We do not understand what problem you refer to.