Home › CBSE Class 11 › Geography › Interior of the Earth › The mean thickness of the oceanic crust is about:
The mean thickness of the oceanic crust is about:
A5 km
B3 km
C9 km
D7 km
Answer & Solution
Correct answer: A. 5 km
1. Continental crust averages around 30 km.
2. Oceanic crust is far thinner than that.
3. Its mean thickness is 5 km.
4. So the answer is 5 km.
_Source: NCERT Class 11 Geography, Ch 3 'Interior of the Earth'_