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. 
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Question: A star burns in space. Eventually it burns all its hydrogen. Becomes a red giant. Once the red giant burns itself out. The core of the star collapses. The gasses will start to disperse. Only the core is left. A white dwarf has been formed. 

Answer: How is a white dwarf star formed?


Question: Bacteria enters the body. Bloodstream. Cells in the body are attacked. Cells are killed. Different kinds of sickness are formed. 

Answer: How does a virus cause disease?


Question: Cold water taken in through a hose to the bottom. Heating element heats water. Pump forces water up in pipes connected to spinning paddles. The forced water makes paddles spin like a sprinkler. Water comes out of small holes in paddles. Water is collected and used again until dishes are clean. Water is drained through a filter. Filter collects particles of food. Water was so hot that it evaporates for dry dishes. 

Answer:
How does a dishwasher work?