Why is a high level of subsistence agriculture a characteristic of less developed countries?

The following are sumerian inventions, except

Use your map on page 347 to find europe (hint: there is a smaller map on the bottom of that page that shows you specifics! ) name three countries in europe. *

Rick is a toddler with an easy temperament and active nature. people are often seen stopping to talk to him in supermarkets and parks where his mother takes him in the evenings because he smiles willingly at other children and adults. this aspect of rick’s behavior most likely reflects a(n) active genotype–environment interaction suppressive genotype-environment interaction passive genotype–environment interaction evocative genotype–environment interaction