Answer:
b
Explanation:
the rock is formed though sedimentation i think
The answer to your question is the letter A
"The Silurian is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at 443.8 million years ago, to the beginning of the Devonian Period, 419.2 Mya.<span> <span>Wikipedia."
https://www.google.com/search?q=He+Silurian+period+occurred&rlz=1C1RUCY_enUS760US760&oq=He+Silurian+...
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Answer:
Object A
Explanation:
The less mass an object has, the less force is needed to move it, so the object with less mass will speed up more with the same force applied to it.