Question

how did von helmont proved that plant needs water to increase mass

Answer 1

In 1634, Jan Baptist van Helmont was arrested by agents of the Spanish Inquisition for the crime of studying plants and other phenomena. While under house arrest, he started to consider how plants grew. 

The prevailing theory at the time was that plants grew by eating soil, and van Helmont devised a clever investigation to test this idea. He weighed a willow tree and weighed dry soil. He planted the tree, watered it and then left it for 5 years. He then re-weighed the tree, which had increased in mass by over 12 stone. He dried the soil and weighed it, showing that the soil was almost the same mass. He concluded that the tree grew by drinking water.....


hope it helps u mate....
pls mark me brainliest

Answer 2

Von Helmont grown a plant,daily he will water the plant and daily checks its weight ...the weight is increasing day by day ...while growing plants he only water the plant he will not keep any pesticides...by watering the plant itself its weight is increasing day by day this he concluded that plants need water to increase mass.....HOPE YOU WILL UNDERSTAND..