Slate industry in Spain keep cutting machinery cool. After quarrying regional authorities often dictate that the landscape is returned as much as possible to its original state, and waste rock left as part of the extraction process is returned adjacent to the quarry Slate industry in Spain 90% of Europes's natural slate used for roofing originates from the slate industry in Spain, with the region of Galicia being the primary source of production. Slate is a fine-grained metamorphic rock that splits into thin, smooth-surfaced layers. Metamorphic rock is rock which was once igneous or sedimentary and has been subsequently subjected to heat and pressure
Inanimate whose the English Language" of 1860: "At present, the use of "whose", the possessive of "who", is pretty generally confined to persons, or things personified, and we should scruple to say, 'I passed a house "whose" windows were open.' This is a modern, and indeed by no means yet fully established distinction." Henry Bradley in the "Oxford English Dictionary" asserted "usually replaced by "of which", except where the latter would produce an intolerably clumsy form". Other grammarians began noticing discrepancies between usage and the assertions of those who prescribed against the inanimate "whose". The American Goold Brown, in his "The Grammar