Question

which statement best describes the purpose of the authors research? a. to evaluate how ecosystems are impacted by decreasing biodiversity on farms b. to identify new ways for farmers to grow monocultures without damaging ecosystems c. to measure how increasing biodiversity on farms expedites plant growth d. to study the negative effects of monoculture farming on food quality

Explanation:

The key is to analyze each option in the context of the research purpose. Option A focuses on the impact of decreasing biodiversity on ecosystems, which is a common and relevant research - area in environmental studies. Option B is about monocultures without ecosystem damage, but there's no indication of this in the general research - purpose context. Option C is about how biodiversity expedites plant growth, which is more about a specific growth - related aspect rather than a broad research purpose. Option D is about the negative effects of monoculture on food quality, which is also a more specific aspect. The most general and likely research purpose is related to the impact of biodiversity on ecosystems.

Answer:

A. to evaluate how ecosystems are impacted by decreasing biodiversity on farms