Answer:

24. b
25. d

Explanation:

24 - Wavelength and Frequency are inversely proportional. Thus making it higher since the wavelength was defined as "shorter".
25 - Sound doesn't travel in a vacuum.

Question:

24. The shorter the wavelength of the wave means ______.

a. the lesser its frequency

b. the higher its frequency

c. vibrations

d. the smaller its frequency

25. The following materials are capable of transmitting sound EXCEPT:

a. air

b. water

c. steel

d. vacuum

Answer:

24.B.The higher its frequency

25.D.Vacuum

Explanation:

hope its help