Question

2. Information skills and Projects
In class VII you already studied how Von Helmont found that the water is essential for the
increase of plant mass. The following were the results obtained after the completion his
experiments on plants.
Read the data carefully and answer the questions that follow.
Mass (kg)
At start After 5 years Change in mass (kgs)
Tree
2.27
76.74
74.47
Dry soil 90.721 90.66 | 0.06
1. Where does the majority of the plant mass come from, if not from the soil?
2. Why did the soil lose some mass?
3. Why mass of the water that he added during five years of study was much more than the
increase in the mass of plant?
What is the variation in the mass of the -
a. soil after five years.
b. tree after five years.
5. What do you conclude based on the data and Von Helmont's experiment?​

Answer 1

Answer:

I can't understand the question