Answer:
The last option
Explanation:
The Bohr model was an attempt to explain atomic hydrogen's spectrum. This was done by establishing energy levels of separate electron orbits in the atom.Thos model was followed by the Schrödinger model.
For 23., you have to find a way to measure your heart rate not increase it. search it up on google.
<span>Volume increases at the same rate as temperature.</span>
Kevlar would be the answer!! enjoy the rest of your day broskies!!!
