Which of the following is an example of pure research? Creating new elements to study their properties Producing plastics that are heat-resistant to use in ovensDetermining how to reduce rusting on metal ships and cargo carriersFinding alternatives to gasoline to fuel transportation vehicles
Creating new elements in order to study their properties is definitely pure research. It has no earthly [known] application, since the elements don't even exist, whereas for each of the other choices, you've stated the desired application as the reason for the search.