EVOLUTION
EVIDENCE FOR EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the older a fossil is, the deeper it will be found within layers of sedimentary rock.
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the older a fossil is, the closer it will be to the surface layers of sedimentary rock.
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gaps in the fossil record tell us all of the detailed changes to life on Earth during that gap.
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fossilized clocks from millions of years ago tell us exactly what time it was when specific events happened.
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Detailed explanation-1: -Fossils are the preserved remains or traces of animals, plants, and other organisms from the past. Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today.
Detailed explanation-2: -Paleontologists want to know the history of evolution and extinction of fossil species through geologic time. To do that, they try to study all of the fossils that have been preserved in sedimentary rocks. That’s called the fossil record.
Detailed explanation-3: -Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date ancient events.
Detailed explanation-4: -Sedimentary rocks have the ability to retain fossils because unlike most igneous and metamorphic rocks, sedimentary rocks occurs at temperatures and pressure that do not obliterate fossil remnants. Therefore, fossils are found in sedimentary rocks.