Given a list of steps and an additional step, determine where the step fits into the original list of steps. A correct answer, correctly places the given step into the set of steps so that it creates a new plausible set of steps. Output must be formatted as 'After step n', where n is the step number after which the given additional step is to be inserted.
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Question: Steps: (1) Solar radiation reaches Earth's atmosphere (2) Some is reflected back into space (3) The rest of the energy is absorbed by land and oceans, heating the Earth (4) Heat radiates from Earth to space (5) Some of this heat is trapped by greenhouse gases in the atmosphere (6) This causes more heat radiation to stay trapped in our atmosphere (7) The Earth's temperature rises  
Where does the following step fit into the given list of steps: Human activities such as burning fuel are increasing the amount of greenhouses gases 

Answer:  After step 5. 


Question: Steps: (1) A star burns in space (2) Eventually it burns all its hydrogen (3) Becomes a red giant (4) Once the red giant burns itself out (5) The core of the star collapses (6) The gasses will start to disperse (7) A white dwarf has been formed.  
Where does the following step fit into the given list of steps: Only the core is left 

Answer:  After step 6. 


Question: Steps: (1) Batteries are put in a flashlight (2) The flashlight is turned on (3) Two contact strips touch one another (4) A circuit is completed between the batteries and the lamp (5) The lamp in the flashlight begins to glow (6) The reflector in the flashlight directs the lamp's beam (7) A straight beam of light is generated (8) The circuit is broken (9) The beam is no longer visible.  
Where does the following step fit into the given list of steps: The flashlight is turned off 

Answer:
 After step 7.