Question

9 which of the following statements is an opinion about the mantle?
a it makes up the bulk of the earths mass
b heat churns through it
c it contains iron, silicon, magnesium, and oxygen
d it is the most important layer of the earth

Explanation:

Facts are verifiable statements about the mantle's properties, while opinions are subjective judgments. Options A, B, and C are measurable, observable facts about the mantle's mass, heat movement, and composition. Option D is a subjective claim about importance, which cannot be objectively proven, making it an opinion.

Answer:

D. It is the most important layer of the earth