Oil and gas are formed from the remains of microscopic ocean organisms. A student claims that the oil and gas deposits in Missouri are about 100 million years old. Based on the map, decide whether you agree or disagree with the student’s claim and then explain your decision.
Identify the main areas of North America on the map where people would expect to find 100-million-year-old sedimentary rocks that contain fossils of microscopic ocean organisms.
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