Which is not true about the Upper Paleolithic period? a. People made tools by chipping flint pebbles into blades and scrapers that had sharp edges. b. Humans and animal forms begin to be seen in art. c. The period took place between 40,000 and 4,000 BCE. d. In cave art, Artists used the cave’s irregularities to create images. Please select the best answer from the choices provided

Suppose that you are in a room with 3 doors and a crack in the ceiling for light. that is all. the doors each have a sign on them that says what there is behind them. door #1. a pool of corrosive acid. door #2. a crocodile that hasn't eaten in 8 months. door #3. a solar "oven". a giant lens that focuses all the sunlight at the entrance of the door. you must choose a door, which door do you choose?