Which of the following statements are true?
a. High-frequency sound waves tend to bend around barriers more effectively than high-frequency sounds
b. None of the choices are correct.
c. Low-frequency sounds are always more likely to be reflected compared with high-frequency sounds.
d. Low-frequency sound waves tend to bend around barriers more effectively than high-frequency sounds.

I will give brainliest

Option D) Low-frequency sound waves tend to bend around barriers more effectively than high-frequency sounds.

Explanation:

In wave mechanics, the frequency of sound waves is inversely proportional to the wavelength.

Velocity (V) =Frequency (F) X Wavelength (λ) Thus, F = V/λ

And since the amount of diffraction that occurs in any wave is dependent upon the wavelength (λ) of that wave, lower frequency sound waves have higher wavelength and tend to bend around barriers more effectively than high-frequency sounds with lower wavelength.

multiplying and dividing the two decimals and the eqations by the same number of the overalls

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'