Component 1 Look at these headings taken from textbooks and decide whether they are Expository or Explanation text types. Title 1. How Does the Digestive System Work? 2. Tornadoes, Cyclones and Hurricanes 3. Why the Dinosaurs Became Extinct 4. Covid-19 in the Philippines 5. What Effect Did Computers Have on Education 6. The Geography of the Philippines Explanation or Expository Reason