Answer:
2,4,3,1
Explanation:
he created a successful artificial part, then aims to create another one thats superior, he rebuilts his limbs for the experiment (goal) and learns to walk with the part(artificial limbs)
In my personal opinion, I'd say 1st and last
When a beam of sunlight enters the dark room through small hole or window then its path become visible due to scattering of light by the dust particles present in the room. 2. When a beam of light is projected on a screen from a projector in the cinema hall, it becomes visible.
