Answer: Cellulose
Explanation:
Starch and cellulose are they two primary polysacharride found in plants.
Starch is the storage polysacharride found in plants in consisting of both linear chain amylose and branch chain amylopectin.
While Cellulose is the structural polysacharride in cell wall of plants. Cellulose consist of a linear chain of thousands of D-glucose units linked together by beta linkages.
With skepticism and open-mindedness, they both revolve around the fact that they don't "confine" themselves in an idea.
However, the difference comes with the means of not confining themselves. With skepticism, you are questioning that idea and essentially, taking that idea with a pinch of salt. With open-mindness, however, you aren't questioning the idea but rather are willing to open yourself to other ideas aside from that singular idea.
Here's an example (it's simplified, but you should understand the difference):
Skepticism: I used to believe in idea A, however after scrutinizing it I'm starting to doubt idea A.
Open-mindness: I believe in idea A, however I want to understand ideas B and C as well.
Answer:
It interacts with the organisms and other things on the surface of the earth
Answer:
It's not too late, we still can help as long as we do something. :)