Question

select the best evidence to support the statement that the desert of antarctica helps scientists study outer space.
antarctica is considered a desert because it receives very little rain or snowfall. the small amount of snow that does fall does not melt but builds up over hundreds and thousands of years to form large, thick ice sheets. antarctica’s terrain is made up of glaciers, ice shelves, and icebergs.
antarctica is too cold for people to live there for a long time. scientists take turns going there. the desert conditions in antarctica are like the conditions on mars; nasa tested robots in antarctica that later landed on mars. nasa instruments have also helped scientists create detailed maps of the surface of antarctica. the maps help researchers when planning trips to antarctica.
adapted from nasa, “what is antarctica?”

Explanation:

To support the statement that Antarctica's desert helps scientists study outer space, we look for a connection between Antarctica's desert conditions and outer space (specifically Mars here). The relevant part is "The desert conditions in Antarctica are like the conditions on Mars; NASA tested robots in Antarctica that later landed on Mars" as it shows how Antarctica's desert environment is used to test equipment for Mars (outer space) research. Other parts describe Antarctica's desert characteristics or mapping for its own trips, not outer space study.

Answer:

The best evidence is: "The desert conditions in Antarctica are like the conditions on Mars; NASA tested robots in Antarctica that later landed on Mars."