everything can be found in the picture
C. The large migration of a group of people
Fortified Complex At The Heart Of Moscow
The humans stopped being nomadic hunter-gatherers and were able to make their own food, instead of chasing it down, and cultures were able to be established. Mesopotamia is one example; nomadic tribes can together, learned to farm, and established a culture(and later a civilization).
Answer: more than 100,000
explanation: light blue is written that it represents more than 100,000 barrels of oil per day, and at the end it’s said Canada is light blue.