liassic उदाहरण वाक्य

The liassic limestone and carboniferous sandstone are also used in the Vale as building materials; in previous centuries it was taken by sloops across the Bristol Channel to North Cornish ports such as Bude, Boscastle and Port Isaac to fertilise Cornwall's poor slate soils; the hard Devonian slate was brought back from Cornwall as a roofing material for houses in the Vale.