I think it is 3 i'm not sure but i'm about 70% sure
Answer: Microwaves and X-rays have different wavelengths and frequencies. Microwaves fall between infrared radiation and above radar radiation. X-rays fall above ultraviolet radiation and below gamma ray radiation. Visible light falls between infrared and through ultraviolet.
Explanation:
Answer:
There are many ways scientists can gather evidence to learn about Earth's interior including direct evidence from rock samples and indirect evidence from seismic waves.
also
1. Seismic waves and earthquakes
2. Volcanoes
3. Principles of density
4. Earth is magnetic
Explanation: