What happens to the leftover gas molecules and dust particles from a star’s formation?

If scientists are wrong about earth's age based on radioactive material and the decay rates are really much faster, how would nuclear power plants be affected?

This is one of the five kingdoms in the older biological succession. organisms in this kingdom are prokaryotic

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.