We don't have a good enough definition of "living thing" to answer this definitively. If viruses count, then it's probably a retrovirus, unless nanobes count in which cases it's a nanobe, unless prions count in which case it's almost certainly a prion. If none of those count, then a bacterium of some kind.
Box Jellyfish
It varies from living thing to living thing.
Sugar is not a living thing, but sugar does come from sugar canes which is a living thing :)
In biological terms, a clone is a living thing. For example, Dolly the sheep was a clone, and clearly she was a living thing.
It is a dormant living thing. Under the right conditions, it becomes an active living thing.
His breath.
Lithium is the lightest.
ANSWER:The ant is the lightest animal in the world.
a feather
The lightest recycable thing is plastic because it looks heavy but it is really light and its matierals used are light and that makes light!
As of 2021, the world's lightest man is Chandra Bahadur Dangi from Nepal, who weighed 12 kilograms (26 lb) and was 54.6 cm (1 ft 9.5 in) tall.
the lightest football cleat is nike vapor jett
The lightest palne was a dog plane
Pumice
the aerogel
Yes it is, and it's also the lightest gas in the universe.
Bacteria