Explanation:
The speed of seismic waves is affected by the density of the underlying rock.
Seismic waves are elastic waves that transmits elastic energy from one point to the other.
These waves generally produced during an earthquake.
- The higher the density of rock bodies, the faster the wave travels.
- Rocks that are well packed with little to no void have a higher seismic velocity.
- Where density of rock is low, the speed is also low
Answer:
B
Explanation:
B It’s a physical change because the water and the salt kept their original properties.
Physical change because it's only changing the shape of the gold.
The paths in which electrons travel are called orbitals.
