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. 

Q: Waters flows downwards thanks to gravity. Enters the dam at high pressure. The moving water spins the turbines in the power plant. The turbines turn the generators. The generators spin, and produce electricity. The water leaves the dam at the bottom. 

A: How is hydroelectric electricity generated?
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Q: There is a lot of rain. Water levels of a river or lake get higher. Water builds up on the ground. Water covers streets. Water goes into houses. The rain or other source of water stops. Water flows into streams. The rest of the water evaporates. 

A: What happens during a flood?
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Q: The spider picks a suitable place. The spider produces sticky silk from its abdomen. The spider attaches it to objects where it wants to build the web. The spider strings this silk back and forth between objects. A web is created. 

A:
How does a spider make its web?
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