Polar bonds happen when two atoms form a molecule using a covalent bond.
When an object moves away from us, the light is shifted<span> to the </span>red<span> end of the spectrum, as its </span>wavelengths<span> get longer.
If an object moves closer, the light moves to the </span>blue<span> end of the spectrum, as its </span>wavelengths<span> get shorter
Hope that helps have a wonderful day !</span>
I think the answer is B. Involves a change in chemical bonds (hope this helps:)
Answer:
Mouth
Explanation:
The saliva supplies moisture, carbohydrate-digesting enzyme and amylase.