Which of the following statements is true:
A. Noise will pollute the environment, and the reflection of light will also cause pollution
B. Noise will pollute the environment, light is clean without pollution
C. The speed of sound waves and light is reduced after reflection
D. Both sound waves and light travel from air to water with the same speed
Answer:A
Which of the following statements is true:
A. Noise will pollute the environment, and the reflection of light will also cause pollution B. Noise will pollute the environment, light is clean without pollution C. The speed of sound waves and light is reduced after reflection D. Both sound waves and light travel from air to water with the same speed