Gthe video demonstrates how stratospheric ozone is depleted by the reaction of ozone with trace constituents of the stratosphere. complete the catalytic destruction reaction of ozone when it reacts with a catalyst. reaction 3 is the net overall reaction when reactions 1 and 2 are added.

it was spontaneous.

"ain't i a woman? " is the name given to a speech, delivered extemporaneously, by sojourner truth, (1797–1883), born into slavery in new york state.sojourner truth' delivered her famous speech "ain't i a woman? " (which did not have a title at that moment) was given without any previous preparation. her dissertation took place at the women's convention in akron, ohio, in 1851.

1 a

2 d

3 a

4 c

explanation:

the answer would be b i believe