It is true because two blocks move horizontally in opposite directions :)
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Answer:
we need more from the question
Explanation:
<span>Faunal succession recognized in the sequence of fossils in stratified sedimentary rocks was a key concept that led to the concept of evolution of life on Earth</span>. T<span>his principle is from Willian Smith, an English geologist. It used to determine the age of the rocks and strata.</span>
The answer would have to be A.
