Question

which best describes the purpose of the international space station?
to conduct research
to end wars
to shield earth from asteroids
to connect the world to space

Explanation:

The International Space Station is mainly used for scientific research in microgravity and space - related fields. It is not for ending wars, shielding Earth from asteroids, or just connecting the world to space in the main sense. Its core purpose is research.

Answer:

to conduct research