Athermometer is removed from a beaker of boiling water and placed in a beaker of room temperature water. the thermometer takes 15 seconds to reach a reading of 25°c. the same thermometer is returned to the boiling water for several minutes. it is then placed under a tap of running water at room temperature. the thermometer takes only 10 seconds to reach a reading of 25°c. what conclusion could you make about conduction and convection based on these observations? a) conduction is a more efficient method of heat transfer. b) convection is a more efficient method of heat transfer. c) no valid conclusion is suggested by these observations. d) conduction and convection are equally efficient methods of heat transfer.