How to orgasm for a 12yr old

Which of the following does not describe a physical property of iron? a iron is silvery-white or gray in color. b iron has a boiling point of about 3,000°c. c iron is a magnetic element . d iron and sulfur react to form iron sulfide.

When analyzing tree rings, what do scientists assume a thin ring indicates?

Which blood cell spend most of their time in the lymphatic system?