A skateboard coasting on a flat surface slows down and then comes to a stop because the skateboard runs out of energy, and slows down, also, sense it is on a flat surface and not going downhill, it goes slower.
Reptiles arose during the Carboniferous period. Therefore making the answer Reptiles
Carbon is not combustible because when it combines with oxygen its energy increases thus it doesnt combust.
Answer:
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The answer is b. The sum of the individual gas pressure in the mixture
