They are not persistent, being biodegradable and also decompose easily on exposure to light.

Freshly-pulled weeds will add substance to the compost pile and should decompose easily.

When metals are near the bottom of the reactivity series, their compounds generally decompose easily at high temperatures.

But evidence has been hard to come by, because remains of roots and tubers easily decompose in the humid tropical environment.

They normally have low melting points or decompose easily.

They will not decompose easily, and they could even smother or kill the grass underneath.

Stibine easily decomposes into antimony and hydrogen at room temperature.

But the company also said the compounds do not easily decompose and therefore are not environmentally friendly.

In any case, chippers should be powerful enough to chop up large twigs and limbs so that they decompose easily.

Since the pollutants are not expected to decompose easily, it took weeks to solve the problems caused by this spill.