About 12,000 years ago, what environmental changes created a shift in food production?
a. The climate of the north grew colder
b. Tundras and the large herd animals that they supported spread throughout the Old World c. Glaciers melted and the sea levels rose
d. Deserts replaced forests
e. The fish disappeared from the ocean
Question 2
What is a burin?
a. A hand axe that is standardized in form and bifacial
b. A flake that is used for large-game hunting
c. A scraper-like tool that is used for curing hides
d. A small boring tool that allows an individual to punch holes
e. A stone tool with chisel-like edges for working bone, horn, antler, or ivory
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