Most Chinese cities were market and administrative centers
The answer is B, the ocean affects their temperatures and helps act as air conditioning, cooling the area near it.
Answer: Scientists know that the Colorado River carved Grand Canyon. ... The age of the river falls between the rocks determined to be older than the river and those determined to be younger. Through this method, scientists have estimated an age for the river, and thus the canyon through which it flows, of 5-6 million years.
Explanation:
