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. 

Ex Input:
Rock begins as magma from a volcano. The magma cools. Crystals form and the magma become igneous rocks. The igneous rocks break down into sediment. Become sedimentary rocks. If subjected to heat and/or pressure from plate-tectonic activity the sedimentary rocks become metamorphic rock. The metamorphic rocks melt. Become magma again. 

Ex Output:
What happens during the rock cycle


Ex Input:
Magma rises through surrounding rock. Gas bubbles form and expand, causing lots of pressure. This pressure pushes the magma through weak spots in the earth's surface,. Magma flows out as lava. This can happen slowly or in a huge explosion. 

Ex Output:
What happens during a vocanic eruption?


Ex Input:
You breathe in through your nose or mouth. The air travels through your windpipe. Into your lungs. Inside your lungs are tiny air sacs. The air sacs transfer the oxygen into your blood. The oxygen travels through your blood stream. The carbon dioxide from your blood stream is transferred to your air sacs. You breathe out and expel the carbon dioxide from your lungs. 

Ex Output:

Describe the process of breathing.