The picture shows a limestone block. Which of these best shows that the limestone was formed from ocean sediments? A) The position of the fossils B) The number of fossils C) The type of fossils D) The size of the fossils
c
. Minerals, coal and petroleum are A) Artificial resources B) Future resources C) Natural resources underground D) Natural resources on earth surface
c
. Which igneous rock is used by dentists for polishing of teeth? A) Granite B) Pumice C) Obsidian D) Sandstone
B
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