Nerve agents can harm people in small quantities.
efflorescent substances are those substances which when exposed to atmosphere lose moisture(woc) partially or completely and changes into an amorphous powder.eg-Cuso4.5H2o when exposed to atmosphere changes into Cuso4+5H2o
DDT
phosphoresce phos·pho·resced, phos·pho·resc·ing, phos·pho·resc·es To persist in emitting light, unaccompanied by sensible heat or combustion, after exposure to and removal of a source of radiation.
Ethylic ether can produce diethyl ether peroxide which is highly explosive.
Efflorescent substances (e.g. sodium carbonate decahydrate, copper(II) sulfate pentahydrate) lose some or all of their water of crystallisation when exposed to the air. Hygroscopic substances (e.g. concentrated sulphuric acid, calcium oxide) absorb water from the atmosphere but do not dissolve in it.
Chemical
Vitamin D. It is produced in small quantities when the skin is exposed to natural sunlight and UV radiation.
Light
Antibodies.
Yes, the lion has been exposed to the process of artificial selection.
Only the the absorption of large quantities of water can be a problem.
spectroscopy
YES, it is frequently possible.
From nausea and vomiting, all the way to death.
atp
Flammable substances are those gases, liquids and solids that will ignite and continue to burn in air if exposed to a source of ignition.
for liquids it is stored in coloured bottles.