Question

space station (iss) is one of the most research facilities ever created. technologies for the iss have resulted in many benefits for humans on earth: worldwide water purification efforts: technologies developed to create drinking water in space have been used on earth to improve water resources in areas without clean water. improving robotics on the ground: the robot arms used in space have been modified to assist with surgeries inside magnetic resonance imaging (mri) machines. improving eye surgery: iss technology was used to develop eye - tracking software that was adapted for corrective eye surgery equipment, like lasik. preventing bone loss and fighting osteoporosis: one benefit of research conducted on the iss was finding ways to prevent astronauts bone loss while in space, which benefits those who suffer from osteoporosis. robotic arms and eye - tracking software were both used to improve surgery, water purification filters, mris

Explanation:

The text states that robotic arms developed for the ISS have been modified to assist with surgeries inside MRI machines and eye - tracking software was adapted for corrective eye surgery equipment. So, both robotic arms and eye - tracking software were used to improve surgery.

Answer:

surgery