5 Points How have scientists been able to determine the composition of Earth's layers? A. By studying the magnetic fields of various planets and moons B. By looking at how seismic waves change speeds as they travel through Earth C. By looking at how X-rays affect the planet D. By studying layers of other planets and moons CUIDAIT
By looking at how seismic waves change speeds as they travel
through Earth
Answer from: Quest
c8h10 is your answerr
Answer from: Quest
The answer is 4 i don't know if its right let me see.
Another question on Chemistry
Chemistry, 21.06.2019 18:00
Aballoon inflated with three breaths of air has a volume of 1.7 l. at the same temperature and pressure, what is the volume of the balloon if five more same-sized breaths are added to the balloon?
The standard emf for the cell using the overall cell reaction below is +2.20 v: 2al(s) + 3i2(s) → 2ai3+(aq) + 6i-(aq) the emf generated by the cell when [ai3+] = 3.5 × 10-3 m and [i-] = 0.015 m is v. the standard emf for the cell using the overall cell reaction below is +2.20 v: 2al(s) + 3i2(s) 2ai3+(aq) + 6i-(aq) the emf generated by the cell when [ai3+] = 3.5 × 10-3 m and [i-] = 0.015 m is v. 2.36 2.24 2.21 2.51 2.04