please answer please answer honestly please please, Respect thank you po

Answer:
1) b. its wavelength
2) d. it travels slower in glass than in air
3) a. sound waves
4) b. longer
5) c. interference
6) a. transverse waves
7) c. speed
8) c. a vacuum
Explanation:
"Nothing can travel faster than the speed of light in a vacuum."
Answer:
salamat sa sagot mu @CRISMDELACRUZ account kudin to hehe,, cgeh napo please pagawa ng e dedisscuss ko please please magsulat kalang ng answer ako na bahala mag video plss plss I BEG YOU pless
Explanation: