Which everyday material is a good thermal insulator commonly used in winter clothing to retain body heat?

Which white blood cell type is the most abundant and primarily fights bacterial infections?

Which natural disaster is measured using the Richter scale?

Which part of the human ear converts sound vibrations into electrical signals for the brain?

Which flexible connective tissue cushions joints and is found in structures like the ear and nose?

What is the normal body temperature of a healthy human in degrees Fahrenheit?