The sky appears to be blue during the day because:
1.Air absorbs blue light less than other frequencies (i.e., acts like a blue filter).
2.Air molecules emit blue light after being struck by sunlight.
3.The sky reflects blue light from the oceans.
4.The temperature high in the Earth's upper atmosphere is 1000 K.
5.None of the above.
Question 2
The Sun appears to be yellow when overhead because:
1.The human eye is most sensitive to yellow.
2.Yellow frequencies are transmitted better through the atmosphere.
3.Air does not absorb yellow frequencies.
4.The temperature of the Sun is 6000 K.
5.More than one of the above.
6.None of the above.
Kerry Blue Terrier
Light palpation with the hands
Light penetration in Rivers
Light palpation
Anterosuperior view of true pelvis (blue)