A seismologist plots the variation in velocity of Pand Swaves in different layers of the Earth during an earthquake. The information is shown in the graph. 15
P waves
10
Speed (km/s)
Swaves
Crust
Mantle
Outer core
Inner
core
0
1,000
2.000
3,000
4,000
5,000
6,000
Depth (km)
What can be concluded from the graph?
The layers of Earth have different densities.
O P and S waves are absorbed in the core.
The layers of Earth do not have distinct boundaries.
O P and Swaves always originate in the mantle and travel through the core.

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them  

points

explanation:

intermolecular forces are the forces between molecules or particles.

there are two kinds of van der waals forces: weak london dispersion forces and stronger dipole-dipole forces.

in molecule of water there are dipole-dipole forces between negatively charged oxygen from one molecule of water and positively charger hydrogen of another molecule of water.

hydrogen bond is an electrostatic attraction between two polar groups that occurs when a hydrogen atom (h), covalently bound to a highly electronegative atom such as flourine (f), oxygen (o) and nitrogen (n) atoms.