The answer is C. <span>Light travels at different speeds in water and in glass.</span>
Answer:
Digestion begins in the mouth, when you chew.
Answer:
6.8×10^6 m
Explanation:
f = velocity of light/ wavelength
440= 3×10^8 / wavelength
so
wavelength = 3×10^7/ 44
= 6.8×10^6 m
