Which trace fossils are created when a creature leaves an impression in the sand, and then the impression is filled with hardened sediment? a. coprolites b. tracks and trails c. molds and casts d. burrows

Which trace fossils are created when a creature leaves an impression in the sand, and then the impression is filled with hardened sediment?

a. coprolites
b. tracks and trails
c. molds and casts
d. burrows and borings

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Which trace fossils are created when a creature leaves an impression in the sand, and then the impression is filled with hardened sediment? a. coprolites b. tracks and trails c.…

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