Question: how bubble tea is made?
Answer: Bubble tea (also known as pearl milk tea, bubble milk tea, or boba) (Chinese: 珍珠奶茶; pinyin: zhēnzhū nǎichá, 波霸奶茶; bōbà nǎichá) is a tea-based drink invented in Taiwan during the 1980s, which is shaken with ice to create the "bubbles", a foamy layer on top of the drink; chewy tapioca balls ("pearls") are added as well.