Google Captcha validates human users and protects any form submission from bots. You can also enable Captcha and select it’s position in your form. All you need to do is enable this feature from the Content settings.

Tick mark to enable captcha.

Choose your placement position.

Change the Google Captcha text in any language. By default, the text will be in English. You can change the Google reCAPTCHA text to another language.