The answer is C. Rubber. Iquitos profited greatly from the boom of the rubber industry, beginning in the 1900s.
Answer:Pastoral farming can be advantageous as land that may be unsuitable for crops can be utilized. However, a downside can occur (and has a number of times in the past) with the spread of disease from area to area just for 1 pro and cokn
Explanation:
Answer: C.
Air masses that are hot and dry, and are responsible for heatwaves of summer in the western half of the United States.
Explanation: Air masses have fairly uniform temperature and moisture content in the horizontal direction (but not uniform in vertical). Air masses are characterized by their temperature and humidity properties. The properties of air masses are determined by the underlying surface properties where they originate.
Air that stands over the Caribbean Sea, for example, becomes a warm, humid maritime tropical air mass, while air that lies in the Arctic regions of northern Canada takes on the cold and dry characteristics of its surroundings and becomes a continental polar air mass.
Answer:
D
Explanation:
Population of North America: 579 million
Population of South America: 422.5 million
Combined = 1.1 billion