No. The last dinosaurs died out 64 million years ago. In fact, there were at least 3 major extinction periods in which nearly all the species of that time were wiped out. The dinosaurs of the Jurassic and Cretacious periods were quite different, but new species began to appear millions of years after each extinction event. On the other hand, the very earliest hominids lived around 7 million years ago, and modern humans (Homo sapiens) did not appear until around 200,000 years ago. So, scientists have never found dinosaur and human fossils together in the same geological layer.
Supposed human and dinosaur footprints can be seen together in solidified volcanic ash at Glen Rose in Texas. They involve some indistinct markings of uncertain origin, and a smaller number of doctored and carved specimens. They are not human footprints.
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A dinosaur footprint is considered a trace fossil because it is evidence of the animal's activity, rather than a physical part of the actual dinosaur's body. Trace fossils provide information about the behavior and movements of ancient organisms.
Part or all the organic material has been replaced by "rock".
No, termites do not produce more CO2 than human burning of fossil fuels. It is estimated that human burning of fossil fuels is the largest source of CO2 emissions, contributing significantly to climate change. Termites do produce some CO2 as part of their natural digestion process, but it is not on the same scale as human activities.
older than the rock layer above it and can provide information about the time period in which it lived and the environmental conditions at that time. This helps scientists estimate the age of the rock layers and understand the history of the area where the fossil was found.
Cannot be done as the Earth is much older than the oldest fossils.