Question

Which of the following factors helped us understand that the Earth has different layers?

1. Based on the analysis of seismic waves
2. Based on material ejected through volcanic eruptions
3. Based on the analysis of the materials obtained from the mines
4. Based on analysis of meteorites

• A. 1 only
• B. 2 only
• C. All of these
• D. None of these

Answer 1

Answer:

C. All of these

Factors helped to understand that the Earth has different layers

• Based on the analysis of seismic waves

• Based on material ejected through volcanic eruptions

• Based on the analysis of the materials obtained from the mines

• Based on analysis of meteorites