On WhatsApp, an admin has a lot of power to control what is on their WhatsApp group. They also have power to remove people. If you want to add people as an admin to a group on WhatsApp, you need to go in the group where you are the admin. Then click on the participants who should be an admin.
After that, you can click on the menu where you make them the group admins. This will allow them to have equal power to make decisions within this group. There may be times when you need to remove people as admins because of something they are doing wrong or maybe they have left interest in the group. To do this, you will click participant’s name and click to remove them.