How did Brian discover fire? He rubbed two sticks together He found a tree that had been struck by lightning He found a tree that had been struck by lightning He made sparks with his hatchet against a rock He made sparks with his hatchet against a rock
Correct! Brian had thrown the hatchet instinctively to protect himself from the porcupine and had made sparks along the wall of his shelter.
How did Brian measure time? He made a calendar by making marks on the shelter wall He made a calendar by making marks on the shelter wall He carved marks in sticks He measured time by important events
Correct! Brian measured time by important events like first fire, first fish, and first meat.
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