Answer: Fish farming, a type of aquaculture, produces fish through selective breeding to produce a cheap source of protein, reducing the fishing pressure on wild stock fish.
Explanation:
The Rio Grande is not shared by the United States and Canada.
The largest water reservoir is the ocean, containing 97.3% of all water on Earth.
Answer:
The Gold Rush was the largest mass migration in U.S. history. In March 1848, there were roughly 157,000 people in the California territory; 150,000 Native Americans, 6,500 of Spanish or Mexican descent known as Californios and fewer than 800 non-native Americans
