How do you delete a placemark in Google Earth?

On your device, go to the Apps tab on google Play, then click the menu button to go to My Apps. An Installed tab should open, and scroll down to the google Earth app. Click the app, and it gives you the option to Open or Uninstall. Click the uninstall, and a pop up should appear saying "Do you want to uninstall this app?". Click OK, and the app will uninstall.