Which imaging technique uses sound waves rather than electromagnetic waves ? a. mri b. x-ray imaging c. sonography d. ct scan

On a cold day, when the air temperature is 0°c, you empty your lungs and take a deep breath, filling your lungs with 4.2 l of air. if you hold your breath until the temperature of the air in your lungs reaches 37°c, what is the volume of the air in your lungs at that point, assuming the pressure does not change?

Could someone . i have tried to solve myself but my calculation is off

Write down two additional questions about earth's magnetic field that will make your presentation more informative.