Answer:
D. A positive charge, because of a covalent bond with oxygen
Explanation:
A water molecule contain both hydrogen and oxygen atom. Water is a polar molecule because it has positive electric charge in one of it's poles and negative charge on the other. The hydrogen is positively charged and the oxygen is negatively charged which are bonded by covalent bond. Hydrogen is positively charged because it cannot attract electrons strongly like oxygen which is positively charged. There is unequal sharing of electrons in water molecules and this is why oxygen is slightly negative and hydrogen is slightly positive.
The crust of the Earth can be thick in some spots and thin in others.
Jellyfish and corals are example of radially symmetrical. When you say radial symmetric it's a kind of animal that has a surface that have a mouth in the center that can reach out in any direction to be able to catch and eat their foods.
