Non-biodegradable substances can last forever. Some substances are slow to degrade, but they still degrade over time. Those that are non-biodegradable should not degrade, even over long periods of time.
Examples are plastics, metal and glass. Dangerous chemicals and toxins are also non-biodegradable, as are plastic grocery bags, Styrofoam (polystyrene), and other similar materials.
There is no time limit on how long a drought can last.
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Some fossils can and do last for billions of years.
How long do house flies live
it will not degrade and will last for long
recycle means to save
Non-biodegradable substances can last forever. Some substances are slow to degrade, but they still degrade over time. Those that are non-biodegradable should not degrade, even over long periods of time.
Depending on the environment, it may be possible for a footprint to last more than 30 years. If an environment is exposed to consistent changes and elements, such as rain, wind, etc., then it is just about impossible for a footprint to last that long. In an environment where virtually no elements are present, in a cave for instance, then it could be possible for a footprint to last that long.
8-10 years if in a non-smoking environment.
Sperm can swim in any environment as long as there mets are required. they only last 4-7 days after ejaculation.
they can last for long time without water because they have long tounges and 'dudes'
Usually less than 9 months. Depending on the environment & driving conditions.
It's basically sand, molten and fused together, so will last the same length of time that sand does ... essentially forever.
Yes, it gradually corrodes, though in the right environment it can last a long time.
It should be noted that conventional plastics can be made biodegradable with the inclusion of a small amount of an additive that promotes biodegradation. It is then called oxo-biodegradable plastic. Read more at http://biogreenproducts.com . Many plastic disposable products are being introduced that can be biodegraded using oxo-biodegradable technology.
The amount of time it takes for an unfed plant to die will depend on the type of plant. Some plants will regenerate the cells within them which makes them withstand lack of food for a long time while other wither and die as soon as food is unavailable.