Q. Consider the following statements regarding the differences between the Oceanic Crust and Continental Crust:

1. The Continental crust is thicker in comparison to the Oceanic Crust.
2. The Continental crust is richer in quartz, while the Oceanic Crust is richer in feldspar.
3. The Continental Crust is otherwise called SIMA, while the Oceanic Crust is otherwise called SIAL.
4. The rocks composing the continental crust are denser than those forming the Oceanic crust.

Which of the above statements is / are correct?
Answer: Only 1
Notes: Statement 1 is correct: the continental crust is indeed thicker than the oceanic crust. Statements 2, 3, and 4 are incorrect; the mineralogical distinctions are not as stated, the terms SIMA/SIAL are outdated and reversed, and continental crust rocks are generally less dense than those of the oceanic crust. Therefore, only statement 1 is correct.