Q: Q: Stirring, surface area, and temperature affect the rate at which what occurs? Choices: - concentration dissolves - solute freezes - solute fragments - solute dissolves A:
A: solute dissolves

Q: Q: What is the main function of blood? Choices: - digestion - respiration - excretion of waste - to transport A:
A: to transport

Q: Q: What do we call zeros that appear after nonzero digits? Choices: - left-end zeros - significant digits - placeholders - right-end zeros A:
A: right-end zeros

Q: Q: What are the three most common protective devices? Choices: - fuses , circuit breaks & surge claws - tranistors, resistors & diodes - fuses , fabrication breaks & surge protectors - fuses, circuit breaks & surge protectors A:
A: fuses, circuit breaks & surge protectors