How is leprosy primarily transmitted from person to person?
contaminated toilet seats
shaking hands
blowing nose
sexual intercourse

The correct answer is option - blowing nose.

Explanation:

Leprosy or Hansen's disease is caused by infection with bacteria Mycobacterium leprae. It is an airborne disease that spread by respiratory tract product which is cough or sneeze and blowing nose.

An infected person might not get an infection initially for 5 to 6 years and later develop symptoms.  Symptoms of leprosy include red skin patches accompanied by the sensation, weakness, and numbness in hands and feet.

Thus, the correct answer is option - blowing nose

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.