#3: Distribution of Largest & Smallest Language Families Use complete sentences into which you incorporate the question to answer the following: Use physical geography to explain the isolation of the second-largest language family, the Sino-Tibetan, and the smallest language families. The presence of _________ explains the isolation of the second largest language family, the Sino-Tibetan, & the smallest language families. 2) Use history to explain why the Indo-European language family is the only one that can be found on all six inhabited continents. Hint: Use the words imperialism and/or relocation diffusion in your answer. © 2014 Pearson Education, Inc.