In this task, you are given a paragraph, and your task is to construct a question from the given passage. Construct question in such a way that (i) it is well explained in the paragraph, (ii) the words may/may not be present in the paragraph, (iii) it should start with what/how/describe. Avoid creating a question that (i) is just relevant to one or two sentences, and (ii) not relevant to passage. 

Input: Consider Input: Chemicals like sulfur dioxide and nitrogen are released into the air. These substances rise into the high atmosphere. They react with water and oxygen. This creates a more acidic rain. The rain with the high acid content falls. 

Output: How does acid rain form?


Input: Consider Input: Body temperature rises. The brain tells blood vessels to dilate. The sweat glands become active. Moisture is released from the pores. The moisture evaporates. The evaporation causes cooling. 

Output: Describe the process of perspiration


Input: Consider Input: Food. Water enter the body. Bloodstream. Food and water enter the pancreas. The pancreas breaks down carbs. Helps digest other foods and liquids. 


Output: Describe how the pancreas works