Answer:
Covalent bond
Step-by-step explanation:
Water molecule made of two atoms of hydrogen and one atom of oxygen. In the formation of water each atom of hydrogen share an electron with an oxygen atom. When atoms share electrons form two covalent bonds. But the sharing of electrons between oxygen and hydrogen is unequal and electrons are drawn more strongly to oxygen atoms, making the water molecule polar with negative charge on oxygen and positive charge on (hydrogen.