The passage used a combination of comparison and contrast and: <span> C. cause and effect.
</span>The passage give us a well descriptive explanation on how the microorganisms (the cause) developed in such a way to the point where their fossils ended up as a petroleum/coal (effect)
Answer:
a. People should leave the past behind and move on.
Explanation:
that is a life lesson or quote that is true, and you should follow