Answer:
B.) Huge tunnels were built for sewer lines.
C.) New aqueducts brought fresh water from hundreds of miles away.
Explanation:
Answer: BECAUSE
Explanation:Psychoanalytic theories stress the continuity of individual differences across development. The child can become fixated on those needs, continually attempting to satisfy them. Substitutes like nail-biting, overeating, smoking. Biologically based, instinctual drives that energize behavior, thoughts, and feelings
Answer: Colorado, southwestern Kansas, the panhandles of Texas and Oklahoma, and northeastern New Mexico.
Answer:
D. The Ricardian model assumes labor is perfectly mobile
Explanation:
This model assumes that labor is perfectly mobile, tech is constant, and markets are perfectly competitive. It was developed by David Ricardo in his classical theory of comparative advantage which explains why countries engage in international trade even though their production may be more efficient than its trade partners. The comparative advantage of countries were explained and based on these assumptions.