Giving {brainliest} and {50 points} 1. how are scientist able to tell that mass extinction took place during devonian time period 2. what do scientist expects caused mass extintion. (disclamer): if answer is not clear not right nor thought out you will het {reported}

Is powdered sports drink ionic or covalent ? 10pts !

What information does a complete ionic equation give that the balanced equation doesn’t show?

How do cfcs cause ozone depletion? how do cfcs cause ozone depletion? ultraviolet radiation breaks down cfcs, molecules containing chlorine. chlorine then breaks one oxygen atom away from ozone, leaving behind a paired oxygen molecule. ultraviolet radiation breaks down cfcs, molecules containing chlorine. chlorine then breaks two oxygen atoms away from ozone, leaving behind a paired oxygen molecule. ultraviolet radiation creates cfcs, molecules containing chlorine. chlorine then breaks two oxygen atoms away from ozone, leaving behind a paired oxygen molecule. ultraviolet radiation creates cfcs, molecules containing chlorine. chlorine then breaks one oxygen atom away from ozone, leaving behind a paired oxygen molecule.