<span>If a scientist is trying to determine whether the use of cell phone contributes to brain cancer, then the most significant weakness in this type of study is the relationship between the cell phone and brain cancer itself. It is hard to identify its connections and consequences with each other.</span>
Answer: Abiotic
Explanation: Prairie soil is Non-living, therefore making it Abiotic!
Biotic also means living btw.
Answer:
C. Constant supplies of freshwater are needed because body water is continually being lost.
