OD A lizard is an ancestor of a frog.
3. Trilobite fossils have been found in rock that is 521 million years old. They have also been
found in rocks that are more than 252 million years old. Trilobite fossils have not been found in
younger or older rocks. What does this tell you!
(Mark the one best answer.)
А
Trilobites became extinct 252 million years ago.
B
Trilobites became extinct 521 million years ago.
C Trilobites lived on Earth for 252 million years.
O D Trilobites lived on Earth more than 521 million years ago

Question

13-12-2021
Geography

contestada

OD A lizard is an ancestor of a frog.
3. Trilobite fossils have been found in rock that is 521 million years old. They have also been
found in rocks that are more than 252 million years old. Trilobite fossils have not been found in
younger or older rocks. What does this tell you!
(Mark the one best answer.)
А
Trilobites became extinct 252 million years ago.
B
Trilobites became extinct 521 million years ago.
C Trilobites lived on Earth for 252 million years.
O D Trilobites lived on Earth more than 521 million years ago

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Tundexi Tundexi · Answer 1 · 2021-12-22T13:48:49+01:00

The evidence provided by the fossils means that Trilobites became extinct 252 million years ago and lived on Earth more than 521 million years ago.

Basically, a fossil is a remains which gives geologist information about the organism which lived in the past because when those organism dies, they decay and remain on or in the earth surface

Since the trilobite fossils are found in rock that are 521 million years and 252 million years old, then, it means that:

Trilobites became extinct 252 million years ago therefore, no other remains keep existing on rocks earlier.
Trilobites lived on Earth more than 521 million years ago

Therefore, the Option A and D is correct.