Which stage of labor involves the opening up of the cervix?
a. effacement
b. crowning
c. dilation
d. detachment
e. breeching
Question 2
Which indoor pollutant is commonly used in building materials, carpet backing, furniture, foam insulation, plywood, and particle board?
a. radon
b. formaldehyde
c. polyethylene terephthalate (PET)
d. polycarbonate plastic
e. asbestos