Which of these can be separated by using a magnet?

Mixtures containing substances that are attracted by magnets can be separated using a magnet. We can separate iron from a mixture of sand and iron, as only the iron is attracted to the magnet.
Learning Objectives
After completing this module, you will be able to:
- Describe the procedure to separate the constituents of a mixture that are attracted toward a magnet.
- Identify the mixtures whose constituents can be separated by using a magnet.

Hey hope you get the answer but i suck at math sorry : (

Rain is pulled by gravity which is a non contact force