Moderate
Composition of igneous rock is determined by___________?
Correct answer: B. Composition of molten magma
- A. Depth of molten magma
- B. Composition of molten magma
- C. Both A and B
- D. Composition can not be determined.
Explanation
The mineral composition of an igneous rock primarily reflects the chemical composition of the molten magma from which it crystallises. Depth mainly influences cooling rate and texture, rather than determining the magma's composition.
Last updated
Practise Soil Science
377 free Soil Science MCQs from Agriculture, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Agriculture questions like this
Agriculture is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.