Artificial boundaries may overlap with traditional, cultural, or historic
boundaries and thus cause disagreements.
The largest state is New York City; with a population above 8.1 million
About 10% of the u.s. is using renewable energy
Domesticating plants marked a major turning point for humans: the beginning of an agricultural way of life and more permanent civilizations. Humans no longer had to wander to hunt animals and gather plants for their food supplies. Agriculture—the cultivating of domestic plants—allowed fewer people to provide more food.
