2. A sprinter on the track team runs 100 meters in 10 seconds and won his race. What was his average speed? O 5 m/s 100 m/s 0 10 m/s​ its physical science, it wouldn't let me say it

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which

what is a measurement of the earth’s history divided into time periods?

> fossil record <

sedimentary rock

> geologic time scale <

radioactive elements

the answer is d p: cell, q: organ, r: organ system, s: tissue

answercalled plucking;