Non-time-critical scheduled medications â these are medications where. early or delayed administration within a specified range of either 1 or 2. hours should not cause harm or result in substantial sub-optimal therapy. or pharmacologic effect.
Slate is a low grade metamorphic rock generally formed by the metamorphosis of mudstone / shale, or sometimes basalt, under relatively low pressure and temperature conditions.
Shale is a sedimentary rock while slate is a metamorphic rock formed from shale. Slate is much more durable than shale due to the metamorphic process it undergoes.