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 Earth stands on the brink of its sixth mass extinction and the fault is ours. The rate at which vertebrate species are dying far exceeds the norm. The marine Tylosaurus and the flying Pteranodon died out in the Cretaceous-Tertiary extinction.