Which kind of electrical charge is found on the oxygen Adom of the polar water molecule?
A. A positive charge that exists because of a covalent bond with hydrogen.
B. A positive charge that exists because of an ionic bond with hydrogen.
C. A negative charge that exists because of an ionic bond with hydrogen.
D. A negative charge that exists because of a covalent bond with hydrogen.

if you know your abc's you should be able to get your answer or just use google

osteogenesis imperfecta (oi) refers to a congenital ailment of bones. in the condition, the bones become brittle or fragile. this ailment is a general result of the defect or mutations in the genes (colia1 or colia2). this mutation results in imperfect collagen formation either in quantity or quality wise.  

there are eight kinds of oi defects, and each kind varies with certain distinctions in symptoms. the usual symptoms include frequent bone fractures, loss of hearing in infants, protruding eyes, discoloration of the white in the eyes, respiratory issues, loosening of the joints, short stature, and other symptoms.