*donner un exemple de deux plaques divergentes ,et de deux plaques convergentes *Citerquelques phénomènes géologiques qui se déroulent dans les zones de divergence

*Citer quelques phénomènes géologiques qui se déroulent dans les zones de convergence

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.