The energy needed by a system to initiate a process is called as the activation energy. It describes the minimum energy which must be available to a chemical system with potential reactants to result in a chemical reaction. Hope this answers the question.
Light waves are part of the _electromagnetic spectrum. _
remember that the whole E.M. Spectrum includes various "types of light" > Infrared, (Visible) Light, and UV Light.
_Brainliest if helped!
Ph means health because i was in health class and she said ph means heath
answer:
if i were you i would copy the entire question into the search bar on brainly or on your regular seach engine
explanation:
it'll come up when you seach it on google or brainly
also quick tip instead of putting it as as image paste the question and the options and ask your question that way its clearer and other people can look up your question easily if they have the same one!
