The Euryarchaeota include the methanogens, which produce methane and are often found in intestines, the halobacteria, which survive extreme concentrations of salt, and some extremely thermophilic aerobes and anaerobes.
This is what I got from wiki.com
Toxic is an adjective.
They will always remain toxic. A toxic chemical is a toxic chemical. Cyanide will always have the ability to kill you and will never, not be deadly.
flammable or toxic
toxic
Very toxic.
Most glues are toxic. Whyl do you want toxic glue.
Steam is not toxic! It can burn, but it is not toxic.
Stools are very toxic.
Very toxic
No. Hydrogen is not toxic.
No, it is non toxic.
That water is toxic.