Which phrase explains what the arrows show? how convection currents move in Earth's interior the location of heated material near Earth's surface where plates move as material cools in the outer core why the densities of materials remain constant at different layers

Which of the following is not a characteristic of a hydrogen bond? 1. it is responsible for the unusual physical properties of water. 2. it is weaker than a covalent bond. 3. it is stronger than other dipole-dipole interactions. 4. it can occur when hydrogen is covalently bound to very electronegative elements liks f, cl, br and i.