C. Dinosaur footprint as it is the only body part that is stated in the choices.
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It started to mold what is now the grand canyons.
A species <span>a group of organisms that have similar traits and are able to produce fertile offspring.
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Answer:
Earth, Mars
Explanation:
Earth is the only planet on which life is known to exist. Water on earth exists in all three forms
Presence of water on Mars was recently confirmed. Though liquid water is no more present, in solid form, water is present in polar ice caps.
