Which kind of electrical charge is found on a hydroge atom of a polar water molecule

The correct answer is A positive charge because of a covalent bond with oxygen.

Explanation:

Water is a polar molecule which consist of 2 hydrogen atom and 1 oxygen atom.The oxygen atom is more Electronegative than hydrogen atom.

                    As a result the oxygen atom attract the bonding electron pair towards itself due to which it acquires partial negative charge and the hydrogen atom gets partial positive charge.

                 This unequal  distribution of bonding electron pair provides the polar nature to water.

answer: - b cells

explanation: -

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.

c is the answer : )               your welcome