I need more information to answer this question.
Answer:
C
Explanation:
It’s always the right answer
The answer is A, a mountain building.
The two faces of the book represent the tectonic plates
As he presses them towards each other he is modeling a convergent boundary, and mountains are an affect of convergent plates.
Yes, because even though other trees produce more oxygen, the small trees will still produce some oxygen. On top of this there are more small trees than big trees, so even though they make less oxygen, in whole they end up making more when added together!
Properly identifying each species.
Accurately recording his findings.
Not interfering with ecosystem while studying the birds.