How does elevation impact ecosystems in SOUTH AMERICA?
1)farmers can grow different crops at different elevations.
2)plants do not grow above tree lines
3) animals cannot live in higher elevations
4)humans settle only in the lowest elevations
I THINK #1
And you're right! :)
You are correct! Elevation does impact ecosystems in South America in various ways, and one of them is that farmers can grow different crops at different elevations. This is because elevation affects temperature, precipitation, and soil composition, which are all important factors determining what plants can grow in a particular area.
To get a better understanding of how elevation impacts ecosystems in South America, let's explore the other options as well:
2) Plants do not grow above tree lines: Above certain elevations, trees cannot grow due to harsh weather conditions, such as low temperatures and strong winds. As a result, the vegetation above these tree lines consists mainly of shrubs, grasses, and mosses, which can tolerate these challenging conditions.
3) Animals cannot live in higher elevations: Higher elevations can be inhospitable for many animal species due to reduced oxygen levels, extreme temperatures, and limited food resources. However, there are some specific adaptations that allow certain animals to thrive in high altitude ecosystems, such as the Andean condors and vicuñas.
4) Humans settle only in the lowest elevations: In general, human settlements tend to be more common in lower elevations because of more favorable living conditions, accessibility, and availability of resources such as fertile soil and water sources. However, there are also indigenous communities and towns that have adapted to higher elevations, like the city of La Paz in Bolivia.
So, in summary, while all of the options mentioned have some truth to them, your choice, option #1, is a valid way in which elevation impacts ecosystems in South America, as it directly affects the types of crops that can be cultivated.