Question: Answer the following question given this paragraph: Light microscopes continued to improve and are still used today. However, to see extremely small objects, a different type of microscope, such as an electron microscope, must be used. Q: What type of microscope is used to see extremely small objects? Choices: - optical microscope - X-ray microscope - ultrasonic microscope - electron microscope A:
Answer: electron microscope

Question: Answer the following question given this paragraph: The volume increases as the temperature increases. The result has three significant figures. Q: What happens to volume as the temperature increases? Choices: - volume fluctuates - volume decreases - volume is unchanged - volume increases A:
Answer: volume increases

Question: Answer the following question given this paragraph: An online guide from the University of Illinois about air masses and fronts is found here: http://ww2010. atmos. uiuc. edu/%28Gh%29/guides/mtr/af/home. rxml . Q: What is essential for cellular respiration for all aerobic organisms? Choices: - nitrogen - water - carbon - oxygen A:
Answer:
oxygen