You can delete your Google account by going to Google's "delete or service your account" page, but you can export your data ...

Deleting digital accounts that you rarely or never use not only reduces the amount of clutter in your online life—it keeps you safer too. Every extra account you've got is an extra target for a hacker ...

Google tracks your online activities through its apps and services. Fortunately, you can clear your past activity by following the steps in this guide.