Bohrs model says that electrons move in fixed shells (which have fixed distances) around the nucleus of an atom.
The ozone layer of the Earth's atmosphere is what protects living things from too much ultraviolet radiation, if that's what you're asking about.
As they contain, green pigement they can perform "Photosynthesis" and obtains energy from that process
Hope this helps!
Heat & pressure. hope this helps
Answer:
Oxidation state shows the total number of electrons which have been removed from an element (a positive oxidation state) or added to an element (a negative oxidation state) to get to its present state
