Angle of incidence and refraction for air at 0 degrees?

zero

Explanation:

When the air is zero degrees then it implies that the air is travelling at an perpendicular to the normal direction.

Therefore, the angle of incidence would be zero degree and in relation to that the angle of reflection and refraction would also be zero degree as per the laws of reflection.

In other ways it can be said that the light goes un-deviated.