The oceans are 3 percent saline, but the Dead Sea is ________ percent saline

________ is surgical repair of the cornea

a. Keratometry b. Keratoplasty c. Gonioscopy d. Electroretinogram

_____ is a phospholipid that lowers the surface tension of the alveoli, preventing them from collapsing

Fill in the blank(s) with correct word