Answer:
The three-sector model in economics divides economies into three sectors of activity: extraction of raw materials (primary), manufacturing (secondary), and service industries which exist to facilitate the transport, distribution and sale of goods produced in the secondary sector (tertiary).
Explanation:
Answer:
The llanos, cerrados, and pampas are grasslands for farming and raising cattle.
Explanation:
South America is a continent dominated by the tropical climate and tropical vegetation. One of the most common is the grassland. The grasslands are referred to as llanos, pampas, and cerrados, with the first two being plains dominated by grasses of varying size, while the latter is mostly a scrubland.
The grasslands in South America though have lost a lot of their natural characteristics because of human activity. These grasslands and scrublands have been seen as the most suitable for agriculture, so the vast majority of farmlands and cattle raising occurs on them. This helps a lot in the economy of the South American countries but it has a big negative impact on the environment and wildlife.
They used the soil by it to farm because it was rich, and the water to travel and trade.
