Omega 3
Nuts and seeds
Fr esh Av a cado
In systole, you should expect that your mitral valve and tricuspid valve to be closed (snap shut) and you should expect your pulmonary valve and aortic valve to open. Hope this helps
Answer:
Noble gases are extremely stable and conduct electricity.
Explanation:
They're stable because each noble gas has a full outer shell of electrons, which means they don't need to gain or lose an electron.
If there were a fire, explosion, or bomb threats in schools, for example, are required to evacuate but if it's a sniper or shooter then they do a lockdown. Because if the shooter is on the outside and they decide to evacuate then they could get shoot so most schools and places do lockdowns.
So the answer would be a sniper. I hope this helps!
