Question

1. what is the primary reason astronauts experience weightlessness aboard the international space station? they have lost their mass in space. they are in free - fall while orbiting earth. the station is constantly accelerating. they are far away from earths gravitational pull.

Explanation:

Astronauts in ISS are in free - fall while orbiting Earth, which gives them a feeling of weightlessness.

Answer:

They are in free fall while orbiting Earth.