What beverage is commonly known as a white drink from cows?

Milk is commonly referred to as a "white drink from cows" due to its appearance and origin. It is a liquid dairy product that is produced by the mammary glands of cows. Milk is naturally white because of the way light interacts with its fat and protein content. The term "white drink" aptly describes milk's color and its primary source as a staple beverage derived from cows, making it easily recognizable and widely consumed across various cultures.

Yogurt, while also a dairy product, is made from fermented milk and has a thicker consistency, which differentiates it from plain milk. Cheese and butter, on the other hand, are products that result from processing milk in different ways, involving the removal of whey or cream. Therefore, they do not fit the description of a straightforward "white drink" sourced from cows like milk does.