Question

jean baptiste van helmont performed an experiment in which he planted a small willow tree in a pot of soil. after weighing both the plant and the soil separately, he watered the plant regularly. at the conclusion of the experiment five years later, the weight of the tree increased by 74.4 kg, while weight of the soil only decreased by 57g. the primary source of the increased weight (mass) of the plant is from:

Answer 1

The primary source of the increased weight of the plant is water.

Step-by-step explanation:

The primary source of the increased weight (mass) of the plant in Jean Baptiste van Helmont's experiment is water. When he watered the plant regularly over the course of five years, the plant absorbed water through its roots, which contributed to its growth and increase in weight. The small decrease in weight of the soil is not significant compared to the substantial increase in weight of the plant.