Question

which of the following best describes the impact of the farming practices in south america on biodiversity?
a. biodiversity will increase due to the introduction of new species for agriculture.
b. biodiversity will decrease due the reduction in food source and habitat for native species.
c. biodiversity will decrease due to native organisms living in the area moving to new habitats.
d. biodiversity will increase due to additional nutrients provided to the soil from ash left over from the fires.

Explanation:

To determine the impact of farming practices on biodiversity in South America, we analyze each option:

• Option A: Introducing new species for agriculture often disrupts native ecosystems, so biodiversity is more likely to decrease, not increase. Eliminate A.
• Option B: When new agricultural species are introduced, they can outcompete native species for resources (food, habitat), leading to a reduction in native species. This decreases biodiversity. This aligns with the negative impacts of non - native species introduction in farming.
• Option C: The option mentions native organisms moving to new habitats, but this does not directly explain a decrease in biodiversity due to farming practices. Farming - related biodiversity loss is more about competition from introduced species or habitat destruction, not just movement. Eliminate C.
• Option D: While ash from fires can add nutrients, this is more related to soil fertility than biodiversity. The question is about farming practices' impact on biodiversity, and this option does not address species richness or variety. Eliminate D.

Answer:

B. Biodiversity will decrease due the reduction in food source and habitat for native species.