D. Ecosystems are important in maintaining the good chain among all the organisms within it, which contributes to a high value of biodiversity
Answer:
geologists use rock samples and direct evidence to prove what earth's structure is like.
Explanation:
If proven to be true, a hypothesis can become a theory, a theorem, or a law. Since her hypothesis is proven to be true, it is no longer a hypothesis.
Chicken nuggets and fries