Question

in what way has technology used aboard the international space station benefited humans back on earth?
robotic arms used aboard the iss are now used in delicate surgeries on earth.
air purifiers developed for the iss now provide cleaner air for humans on earth.
software created for the iss was adapted and is now used to conduct brain surgery on earth.
research conducted on the iss crew about heart disease is now used to help patients on earth.

Explanation:

The robotic arms on the ISS have been adapted for use in delicate surgeries on Earth. This is a well - known example of space technology having a beneficial impact on terrestrial medical procedures. Air purifiers for the ISS are not a major way the ISS technology has benefited humans on Earth in a widely recognized sense. Software for the ISS being used in brain surgery is not a common or well - known application. Research on heart disease in ISS crew is not as directly and commonly associated with a major benefit as the robotic arm application.

Answer:

Robotic arms used aboard the ISS are now used in delicate surgeries on Earth.