Answer:
Calculate Mean Annual Temperature
Add the mean monthly temperatures for the months of the calendar year, January to December, together, and then divide by 12. This will be the mean annual temperature.
Explanation:
the grasslands of South America are a low plain, not mountainous or rain forest
Plains are the best spot to start a cattle ranch. There is abundant grass for the cattle and fertile soil.
The tropics are between 23.5 south and 23.5 north.