7.1(A)^ identify the major eras in Texas history, describe their defining characteristics, and explain the purpose of dividing the past into eras, including Natural Texas and its People … 7.8(B)*^ locate and compare places of importance in Texas in terms of physical and human characteristics such as major cities, waterways, natural … landmarks … and local points of interest 7.9(A)*^ identify ways in which Texans have adapted to and modified the environment and explain the positive and negative consequences of the modifications 7.2(A) compare the cultures of American Indians in Texas prior to European colonization such as Gulf, Plains, Puebloan, and Southeastern 7.8(A)^ locate and compare the Mountains and Basins, Great Plains, North Central Plains, and Coastal Plains regions