Water wheels convert the kinetic energy of moving water into which form? a. potential energy b. chemical energy c. gravitational energy d. mechanical energy

This chart represents the melting point of several substance. what besy explains the high melting point of the salt?

Three alkali metals in group 1 are a. calcium, strontium, barium b. boron, aluminum, gallium c. sodium, potassium, rubidium d. fluorine, iodine, chlorine

According to the diagram, what sources contribute to the phosphorus found in soil? according to the diagram, phosphorus found in soil contributes phosphorus to what other sources?