-2)
1.second paragraph;
2.the fifth paragraph.
3.third paragraph.
4.first paragraph.
-3)
1.Cosmetics companies test their new products on animals.
2.Cosmetics are applied to the backs of guinea pigs to test the skin irritancy.
3.In order to stop animal testing,cosmetics companies are being pressed by animal rights organisations by protesting,signing petitions against animal testing,convincing people not to buy products that had been tested on animals.
4. The new irritancy test isn't cruel because it isn't being used on animals.
5.Animal testing had helped science in the past by observing animal behavior or in testing new medicines.