An early experiment by van helmont (1600s) describes how he grew a tree in a large pot and found that after five years, the amount of soil in the pot had not changed. he concluded that the increase in weight was due to the addition of water. at that time, the compounds of the air had not yet been identified. today, it is known that he only discovered half the story. which of these experiments would not provide evidence that materials from a source other than water were involved in photosynthesis?

Answer asap 50 points which of the following distinguishes the soil composition of grassland? 1. the soil supports large trees with thick, long roots, so horizon b needs to be deep enough to sustain larger flora. 2. the soil supports large trees with thick, long roots, so horizon a needs to be deep enough to sustain larger flora. 3. the soil supports small plants and shrubs with short roots, so horizon a needs to be deep enough to sustain smaller flora. 4. the soil supports small plants and shrubs with short roots, so horizon b needs to be deep enough to sustain smaller flora.