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?

bru what tyep of qus is dis

what? are the statements?

bacteria could be both, harmful and to us. harmful bacteria could make us sick and probably even by getting the chances of getting a disease, but good bacteria fight it off with your immune system. there is always bacteria everywhere we go. we need to make sure to wash our hands after using the restroom, before eating, after eating, after petting an animal too. so you see, bacteria is everywhere and is harmful or . i hope this . : ) : ) : )