I believe your answer is d).
Hope you find this helpful! :)
In physics, the principle of conservation of momentum states that when you have an isolated system with no external forces, the initial total momentum of objects before a collision equals the final total momentum of the objects after the collision.
Answer:
Las moléculas en el aire dispersan más la luz azul del sol que la luz roja. Cuando miramos hacia el sol al atardecer, vemos colores rojo y naranja porque la luz azul se ha dispersado y lejos de la línea de visión.
Explanation:
That change in pitch can be described by the math
of the Doppler effect. But that doesn't 'explain' it.