Which layer of the skin provides insulation and stores energy as fat?

Which type of teeth erupt last in humans typically between ages 17 and 25 and are commonly called wisdom teeth?

Which famous experiment proved that the Earth orbits the Sun rather than the Sun orbiting the Earth?

Which layer at the back of the eye contains photoreceptor cells called rods and cones that detect light?

Which everyday device converts alternating current into direct current for charging electronic devices?

Which unit measures the loudness or intensity of sound?