If a young plant just falls in the soil does that mean it's dead?
Answers:
It may just be in shock if it went from full shade to full sun or if there was an extreme temperature change.
Sometimes you have to gradually aclimate them to the outside/heat/sun.
Other answers:
No. Bring it inside to grow.
No. Bring it inside to grow.
not necessarily... is it brown and dry? or is there some green left? what kind of plant?
(not all plants like too much sun or lots of water...)
Some plants don't like too much water or sun. There is another thing, too: If this is a plant you got from a store, there could be nematodes attacking the roots.
Usually a fainted plant is getting too much sun. Pick a shadier spot and keep the soil moist not soupy. Wait for it to revive and get it used to being in the sun. Gradually move it towards the full sun or give it 4 hrs and put it in the shade during the hot afternoons.
It'll take less than a week to get it accustomed to full sun.
PS Make sure the plant is supposed to be in full sun...
If this is a seedling rather then a store bought transplant this could be Damping Off Disease. This is caused by starting the seeds in a media that is not sterile. It's basically a fungus that kills from the roots up. Check the plant just above the soil line and if the base of the plant has dark ring around it then it's Damping Off. Seeds should always be started in a seed starting mix. Check Burpees or Park Seeds web site for seed starting mix. If it is Damping Off, then you can just throw the plant away.