A geologist discovers a rock that is grey in color, fine-grained, and soft enough to break with hands. When scratched, it leaves a mark. Which type of sedimentary rock is most likely being examined?
1 )
Sandstone, because it can be broken by hand
Shale, because it is fine-grained and leaves a mark when scratched
3 )
Limestone, because it is grey and soft
4 )
Granite, because it is soft enough to break with hands
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