Home › CBSE Class 11 › Geography › Interior of the Earth › The mean thickness of the continental crust is a…
The mean thickness of the continental crust is about:
A90 km
B30 km
C50 km
D70 km
Answer & Solution
Correct answer: B. 30 km
1. Oceanic crust averages only 5 km.
2. Continental crust is several times thicker.
3. It is around 30 km thick.
4. So the answer is 30 km.
_Source: NCERT Class 11 Geography, Ch 3 'Interior of the Earth'_