<span>The answer is the option C. Altitudinal zonation. Altitudinal zonation is a graph or drawing showing the natural features of ecosystems of mountains at different heights. Several factors affect the ecosystems. On of the most basic and most used is the temperature. The infamous scientist Alexander Von Humbold was first in using the relationship between temperature and the altitude in a mountain in relation with the vegetation. Other factors related with the altitude and the ecosystems are solar radiation, soil composition and humidity.</span>
After reaching North America, humans migrated to South America.
I think it is the first one
Answer: 1917, two revolutions swept through Russia, ending centuries of imperial rule and setting into motion political and social changes that would lead to the formation of the Soviet Union.
Explanation:
Answer:
think of the model as the data that you would put on a spreadsheet and the diagrams as the different types of charts that you can use to view and interpret that data, for instance, a pie chart or bar chart
