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: Plants produce fruit which contain seeds of the plant. An animal eats the fruit from a plant. The animal digests the fruit. The seeds are not digested. The seeds pass through the animal's digestive system. The seeds are in the animal's droppings. The seeds are now in another location and can grow. 

Answer: How do plants use animals to help disburse their seeds?


Question: The growing season starts. Bark grows on a tree. The inside of the tree grows. The bark is pushed out around the tree trunk. The bark leaves a ring. The growing season slows down and ends. 

Answer: How do rings form inside the trunk of a tree?


Question: The oil is extracted either onshore or offshore by large oil rigs. Crude oil is transported to a refinery. The refinery turns the crude oil into gasoline. The gasoline is loaded onto tank trucks. The tank trucks go to gas stations all over the place. The gasoline is delivered to the gas station. 

Answer:
How does oil get from the ground to a gas station?