Question

read this press release about the results of a two - year study by colorado state university. which piece of evidence is most helpful to support a claim opposed to prescribed burning? fires behave differently, and it is hard to create the same fire experiment twice. the burned area had a healthier and more diverse ecosystem. the dominant plants were thinned to make room for other species. naturally occurring fires may have thinned the area before humans settled there.

Explanation:

To oppose prescribed burning, evidence highlighting its unpredictability (fires behaving differently and hard to replicate) undermines its controlled - use premise. The other options (healthier ecosystem, species thinning, natural fire history) support or are neutral to prescribed burning.

Answer:

Fires behave differently, and it is hard to create the same fire experiment twice.