* Wood chips are decorative, decompose
quickly and add nutrients to the soil
Bondy  proved that if we double the edges of a cubic graph then [P.sub.4] decomposes
the resulting multigraph.
Theorem 18 For all integers k [greater than or equal to] 3, the problem of determining if [P.sub.4] decomposes
a 2k- regular multigraph G with [mu](G) [less than or equal to] [2k/3] + 1 is NP-Complete.
However, the former method is unable to sufficiently decompose
cyanogen compounds and the latter method is costly.
Sludge has been used in landfills to help increase the rate at which trash decomposes
. At the beginning of the study, researchers poured distilled water into each bin, until they saw the water draining into the liner under the bins.
Once in the furnace, the coatings will decompose
or be altered with the residue, ending up distributed among the three phases present - the metal itself, the slag phase always present with liquid metal or the gas phase such as the blast air in a cupola or the atmosphere over the electric furnace bath.
Still, the company doesn't discount the fact that the resins decompose
completely into water and C|O.sub.2~.
The hydroperoxide radical then decomposes
to form an oxide radical and the hydroxyl free radical.
Light, temperature, the amount of cornstarch and soil conditions all determine how fast the bags decompose
. Regular trash bags can take up to 100 years to disintegrate befor their biodegradable contents have a chance to return to nature.
According to Saido, a chemist with the College of Pharmacy, Nihon University, Chiba, Japan, his team found that when plastic decomposes
, it releases potentially toxic bisphenol A (BPA) and PS oligomer into the water, causing additional pollution.
"You've got to study how nature decomposes
," says Malcolm Beck, a horticulturist in Austin, Texas, and a lifelong composter.
But magnesium hydroxide decomposes
at a higher temperature--around 540 F, vs.