Answer:
A. Water
Explanation:
Van Helmont concluded that most of the mass the plant gained had come from water, because that was the only thing that he had added to the pot. Van Helmont's experiment accounts for the "hydrate," or water, portion of the carbohydrate produced by photosynthesis.
Answer:Many bacteria and fungi are important in the environment because they return energy to the environment
Explanation:
The Law of Superposition.
The Law of Superposition states that each layer is younger than the one beneath it.
Answer:
D
Explanation:
There are many food chains within a food web, so D seems like the best possible answer :)
