Geology Geological Time Earths Internal Structure

1.

Approximately what is the age of the earth?

3.5 billion years

4.5 billion years

4 billion years

2.5 billion years

2.

Which of the following is an example of direct source to study interior of the earth?

Gravitation

Sesimic activity

Magnetic field

Volcanic Eruption

3.

Which of the following layer of the earth is termed as Sial?

Core

Crust

Mantale

None of the above

4.

Lithosphere is the combination of __?

Upper core and lower core

Upper crust and lower mantle

Crust and uppermost part of mantle

Mantle and core

5.

Which of the following rocks found in Oceanic crust?

Granite

Basalt

Igneous rocks

Metamorphic rocks