Halogens are destructive to ozone because they are highly reactive with oxygen.
true or false?

Question

Halogens are destructive to ozone because they are highly reactive with oxygen.
true or false?

anonymous · Answer

i want to say it's true but not sure

anonymous · Answer

and can someone help with this one?
Which of the following would most likely utilize a particulate control device?
a.
a vacuum cleaner
b.
a factory smokestack
c.
a laundry dryer
d.
all of the above

nnesha · Answer

$\color{purple}{welcome :) to :) open :) study}$
this is math section if you look at the top there is " find more subject" 
and then click on a right subject where that suppose to be thanks

nnesha · Answer

and yes that is true

nnesha · Answer

excuse me why you have to say that word

anonymous · Answer

well, i will close this. thank you again

nnesha · Answer

that word  is not appropriate  
:)
thanks :)