The hormone testosterone is related to whereas oxytocin is related to

Testosterone is mainly produced in the testicles in men. The production of testosterone begins to enhance substantially at the time of puberty and starts to decline after the age of 30. Testosterone is generally related to sex drive and plays an essential function in the production of sperm.  

Oxytocin refers to a neurotransmitter and a hormone, which plays an essential role in childbirth and breast-feeding. It is also related to trust, empathy, sexual activity, and building a relationship.  

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.