There is no question that there are poisonous substances in all forms of smoke, and breathing it can be harmful.
The correct spelling is poisonous (harmful, venomous).
Poisonous is a synonym for toxic.
all smoke is harmful to lungs.Windpipe not a chimney
Yes.
The poisonous bits.
only if you eat them
harmful, deadly, toxic
The smoke is not harmful. It is the tar content that is harmful, which is the reason tobacco companies began placing filters on cigarettes.
well harmful toxins is a poisonous substance that are within other organism.
Beetroot leaves are not poisonous to cats. However, cherry leaves and peach leaves are poisonous and harmful for a cat to ingest.
All drugs that you smoke are harmful to your lungs; cannabis, nicotine, crack etc.
You are correct all smoke is harmful, but between these too, cigarettes and marijuana. Marijuana is least harmful.I hope this has helped you.