I found this photo, i hope it helps
Explanation:
carbon dioxide released during decay.
You can but try not to because that is the most important meal of th e day if u have a good breakfast u will have a good day. But if u don't is fine but u will feel hungry. But in my opinion u should always have breakfast ALWAYS!
Hope this helped!
It refers to the cost or benefit of an activity by an economic agent for which it does not pay a price.
Fr ex: factory produces goods , it releases harmful smokes n polluts our enviroment.
In this case externality implies the negetive effect.
Hope it helped u!!