Mohorovicic discontinuity is found at about …………… beneath the oceans and …………… beneath the continents.

1. 8 km, 32 km
2. 8 km, 10 km
3. 10 km, 60 km
4. 10 km, 40 km

Extending upwards, the earth is enveloped by a blanket of gases. Name it.

1. Lithosphere
2. Hydrosphere
3. Atmosphere
4. Chamber

The average thickness of Mantle is ……………… km.

1. 2500
2. 2700
3. 2900
4. 2300

Gutenberg Discontinuity begins at the depth of ……………. km.

1. 2500
2. 2800
3. 2900
4. 2400