In a sentence, how is speed and motion related?

Several processes form metal ore. match each process to its description. volcanic activity weathering hydrothermal energy rocks break down as they interact with air and water. arrowright density differences and other factors cause metals to concentrate in igneous rocks. arrowright seawater heats up from contact with hot rock, and metals dissolve in it. the water rises and contacts cooler water, causing metal ores to settle on the ocean floor. arrowright

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.