caucasoid

mongoloid

australoid

negroid

The three main racial stocks of the world are Caucasoid (white), Mongoloid (Asian), and Negroid (African). These categories are broad and oversimplify the complex variations in human populations across the globe.

1. caucasoid/caucasians,mongoloids/asians,negroid/black

No, neither. Chinese come from the much earlier Mongols, and are thus Mongoloid. Black people are negroid, and white/arabic/persian people are Caucasoid, wrongly called, "White".

The term "Caucasian" generally refers to people of European descent, while "Negroid" is an outdated and offensive classification based on physical characteristics. Arabs are typically classified as part of the Caucasoid racial group, along with Europeans. They are not usually categorized as Asian or Negroid.