Printed textbook model paper
The sky appears blue during the day due to:
دن کو آسمان نیلا نظر آنے کا سبب ہے:
Solution & explanation
Correct choice(s): (b)
Stronger scattering of shorter visible wavelengths by air molecules, with the solar spectrum and human vision contributing to the blue appearance.
Independent study material · English-medium textbook p. ii · Original book ↗