biol.ua users can use Facebook to register and log in to our site.

We do not store your personal data on our server. According to Facebook's policy, we must provide a callback URL for user data deletion or a URL for data deletion instructions.

If you want to delete your activity for biol.ua, you can delete your information by following these steps:

Go to Settings & Privacy in your Facebook account.

Click "Settings".

Look for "Apps & Sites" and you'll see all the apps and websites associated with your Facebook account.

Opposite "biol.ua" click "Delete".

Congratulations! You have successfully deleted your Facebook activity.