There are nine states in the northeast region
True u can easily find out by watching bill nye the science guy
<span>Earthquake waves that vibrate from side to side and up and down only through solids are known as secondary waves, or simply S-waves. As you can see in the question, they pass through solids - to be more precise, they flow through rocks and cause them to change their shape. They are quite strong, but not as strong as primary waves, as they cannot pass through liquids or gases. </span>
Answer:
Explained below
Explanation:
In physics, we know that waves usually change direction when are refracted or when they penetrate layers with different densities.
Therefore, when a seismic wave penetrates penetrates the boundary of the earth's interior, part of it will be sent back and part will be transmitted into the medium as refraction occurs. When we record the reflected and refracted ray, it enables the calculation of the position of major boundaries in the Earth's interior. This also helps in providing information about the solid & liquid character as well physical properties of the various layers in the medium.
