Their activity improves the growing environment by increasing air and water movement in the soil and they help decompose thatch.
(Their activity; improves; the growing environment) (they; help; decompose thatch) Context(they help,List([101, 110))):(they; help decompose; thatch)
they help,List([101, 110))
Their activity they they
improves help help decompose
the growing environment
decompose thatch
thatch