This is Zachary Corey(Period 3, 7th grade, Life Science). Your March 26 A: To have even undisturbed data to use with all areas for data. It is all about real data not messed with areas. Your March 27 A: The plants will have warmed up quicker, so with still some melted snow by the sun heat which also provides the light needed and the soil won't be frozen in permafrost(a few more inches), so more nutrients are available.