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]: Magma cools inside the crust. Magma crystalizes. Lava cools on the surface. Lava crystalizes. Minerals dissolved in water crystlize. 
[A]: How do minerals form?


[Q]: Begin the party. Partake in activities. Bring out the cake. Sing "Happy Birthday!". Blow out the candles. Eat the cake. Open the presents. 
[A]: Describe the typical steps in a kid's birthday party.


[Q]: Choose what you want to write your letter on. Think of what you want to say. Write some nice things!. Place the letter into an envelope. Put a stamp on the top right corner of the face of the envelope. Write the address of the recipient on the envelope. Put the envelope in your mailbox. Raise the flag on your mailbox, indicating to the mailman that you have outgoing mail. 
[A]:
Describe the process of writing and posting a letter


