Multiple Choice Question X — task. Science CBSE, Class 10.

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1. The presbyopia chases due to

(a) Elongation of eyeballs
(b) Gradual weakening of ciliary muscle
(c) Diminishing flexibility of eye lens
Both (b) and (c)

2. The sky appears dark to an astronaut because of

Refraction
Scattering
There is no atmosphere for scattering of light
Dispersion

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