Different periods in human history are named for the materials used to make tools. dr. franklin is searching through layers of soil, looking for tools made by humans. after screening the top layer of soil, he uses a magnet to speed up the search. which type of location is dr. franklin most likely searching? a cave from before the stone age a stone age cave a bronze age battle site an iron age farm

the answer is :

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.

d. planting trees

the trees take in carbon to make oxygen.