1 The Depo-ProveraÂ® shot is very effective in preventing pregnancy. 2  It is important to get your shot every 13 weeks (3 months).  Periods can be heavier initially, and then lighter, or absent while on Depo-ProveraÂ®.
there are three animals close to being extinct wich are the polar bears, tigers and dolphins but dolphins are probably the closest one to becoming extinct. hope we ansered you â¦ r question. Jake Wayne
The end Permian extinction was the greatest mass extinction of the Phanerozoic Era. It. impacted marine and terrestrial plants and animals. Although the rate of the extinction has been. controversial in the past, recent evidence suggests that the extinction progressed in two pulses. approximately 5-12 million years apart.