Which of the following statements about the prevalence of perinatal mental health problems is true? (select all that apply.) a the world health organization (who) recognizes postpartum depression as the leading cause of disability in women. b up to a ¼ of pregnant women will experience some aspect of depression during their pregnancies.

the answr is b. B Up to a ¼ of pregnant women will experience some aspect of depression during their pregnancies.

                                                        water

a colorless, transparent, odorless, tasteless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.

                                                        halon  

any of a number of unreactive gaseous compounds of carbon with bromine and other halogens, used in fire extinguishers, but now known to damage the ozone layer.

                                                  dry chemical

extinguishing agent used on class a, class b, and class c fires.

                                                  carbon dioxide

a colorless, odorless gas produced by burning carbon and organic compounds and by respiration. it is naturally present in air (about 0.03 percent) and is absorbed by plants in photosynthesis.