Two main types of seismic waves are P wave and S wave. P waves stand for pressure waves or primary waves.
P waves are the first waves signal during the earthquake.P wave can travel through any media , the media can be liquid, gas and solid. P waves can not move the particles side to side and up and down.
Decomposers also break down the bodies of dead organisms resulting in nitrogen being returned to the soil as ammonia. In some conditions denitrifying bacteria in the soil break down nitrates and return nitrogen to the air.
