Question

Paleontologists discovered fish fossils in the arid deserts of western Egypt. What does the fossil evidence most likely indicate about this area's geologic past? A: The desert was once a vast ocean. B: A giant ocean wave carrying sea life crashed onto the desert.
C: Mountains in the region once provided water from snowmelt.
D: The area was moved from the ocean to the deserts by plate tectonics.
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Answer 1

Answer:

The correct answer is option A: "The desert was once a vast ocean".

Explanation:

One of the most prominent fish fossils that were found in the arid deserts of western Egypt belong to the Giant Catfish named Qarmoutus hitanensis, that lived roughly 37 million years ago as it was scientifically determined. The presence of this and other related fossils indicate that the desert was once a vast ocean. Actually, the arid landscape of this zone has been named Wadi Al-Hitan (which means Valley of the Whales) in honor to its past.