Answer:
Step-by-step explanation:
Text structures describe how writers arrange information in their texts. Students may concentrate on important ideas and relationships, predict what will happen next, and keep track of their knowledge as they read by understanding the underlying structure of texts.
How to identify the text structure used here?
“Most rocks at the Earth's surface are formed from only eight elements (oxygen, silicon, aluminium, iron, magnesium, calcium, potassium, and sodium), but these elements are combined in a number of ways to make rocks that are very different.”
“Geologists classify rocks in three groups, according to the major Earth processes that formed them. The three rock groups are igneous, sedimentary, and metamorphic rocks.”What is being described? What is important to know about this subject? chronological order“ begins with,” “first”: “A rock collection might begin with stones picked up from the ground near your home.
These stones may have limited variety and can be replaced later by better specimens. Nevertheless, this first step is helpful in training the eye to see diagnostic features of rocks.”What events or steps are described? Do these things need to occur in a particular order?