Seeds need to be in a cool, dark and dry place. Excluding all air is not a good idea, because the seed still is a living organism and 'breathes' although very slowly.
Due to dormancy and various levels of seed viability
Winter dormancy is when an organism's growth or activity stops because of the freezing temperatures and the lack of liquid water.
Water
No; only living seeds without dormancy can be sprouted.
Hope Sherman has written: 'Respiration of dormant seeds ..' -- subject(s): Dormancy, Dormancy in plants, Plants, Respiration, Seeds
Seed dormancy is a condition of plant seeds that prevents germination when the seeds are under optimal environmental conditions for germination. Living, non dormant seeds germinate when soil temperatures and moisture conditions are suited for cellular processes and division; dormant seeds do not.
G. M. Simpson has written: 'Seed Dormancy in Grasses' -- subject(s): Dormancy, Grasses, Seeds
Yes, and a few seeds undergo dormancy for specified periods
During dormancy, seeds wait until the conditions are optimal for cellular respiration. Modifications would include things such as seeding elongation, germination and hormone regulation.
Because its viability is less.
It is used in some cases to break dormancy and trigger growth.
Thomas P Leavitt has written: 'Presence and viability of seeds in forest soils as related to depth, time and land-use history' -- subject(s): Forest ecology, Seeds, Viability, Forest soils