Which example provides scientific data about the earth's interior?
a.
the motion of continents
b.
earth's orbit around the sun
c.
how seismic waves travel
d.
the size of volcanoes on the earth’s surface

The correct answer is C. How seismic waves travel

Explanation:

The Earth is composed of different layers that include the crust, the mantle, the outer core and the inner core, each of these layers and the features of them have been discovered throughout the years by topographers, and other experts mainly by studying seismic waves. This can be explained as seismic waves that occur due to earthquakes, eruptions, explosions and other phenomena, travel through the different layers of Earth and depending on which layer they are they display different features and speed which is the main information scientists used to determine the layers of Earth and other features of Earth's interior. Thus, it is how seismic waves travel the one that provides scientific data about the earth's interior.

because the two particles have an equal charge, the charges will cancel out and give the atom an overall charge of 0. so, if at atom has 35 protons in the nucleus, we could expect it to have 35 electrons orbiting that nucleus.