TASK DEFINITION: You need to answer the question 'Are the given steps in order?', given a set of steps describing a process. Your answer must be either Yes or No. If the answer is No, that means the steps are out of order and do not make sense in the order they are in. If the answer is Yes, that means the steps are in order and make sense in the order that they are in. A set of steps are not in order if the steps reference information that is introduced in a later step
PROBLEM:  ['The bat sends out sound waves from their mouth or nose', 'Echoes are produced', 'The bat hears the echo', 'The sound waves hit an object', 'The bat can figure out where the object is located.', 'The echo returns to the bat&#x27;s ears'] 

SOLUTION:   No  

PROBLEM:  ['The carbon atoms rearrange to become a new substance.', 'Pressure builds over time', 'The remains liquefy', 'They are buried under layers of soil', 'Plants and animals long ago died'] 

SOLUTION:   No  

PROBLEM:  ['A photovoltaic cell is created with two layers of semiconductor material', 'The top layer are &#x27;doped&#x27; with impurities to allow a negative charge', 'The bottom layer are &#x27;doped&#x27; to allow for a positive charge', 'This produces an electric field that allows electrons to flow from negative to positve', 'Sunlight enters the cell', 'Energy from sunlight knocks electrons loose in both fields', 'This prevents the flow of electrons from negative to positive', 'Adding an external circuit allows the exchange to continue', 'Give the cells owner a flow of electricity.'] 

SOLUTION:
  Yes