Shales Are Usually Described as Weak Because They Are ________. A)so

What economic value do shales have, such as the Queenston Formation below the Niagara escarpment? A)cut dimension stone for buildings B)fine grained detrital gold C)high oil contents D)raw materials for brick making, pottery or tiles

Which sediment gets lithified to become shale? A)all clay sized sediment B)gravel C)clay and fine silt D)sand