Answer the following:
Janani prepares dough using a flour and water. She notices that the flour becomes soft and sticky after mixing. She wonders whether the dough can be changed back into dry flour.
1. What type of change occur while making dough?
2. Which of the following is correct about the change taking place in cooking roti by kneading the dough?
3. Which of the following example is similar to cooking of roti?