(Q).
Q: What kind of waves travel through liquids and solids as well as air? Read this paragraph and choose the correct option from the provided answers: Sound waves can travel through many different kinds of matter. Most of the sounds we hear travel through air, but sounds can also travel through liquids such as water and solids such as glass and metal. If you swim underwater or even submerge your ears in bathwater any sounds you hear have traveled to your ears through water. You can tell that sounds travel through glass and other solids because you can hear loud outdoor sounds such as sirens through closed windows and doors. Choices: - light waves - mind waves - radio waves - sound waves A:
(A).
sound waves

(Q).
Q: Scanning acoustic microscopes use what kind of waves to scan a specimen? Read this paragraph and choose the correct option from the provided answers: Scanning acoustic microscopes use sound waves to scan a specimen. These microscopes are useful in biology and medical research. Choices: - radio waves - heat waves - gamma waves - sound waves A:
(A).
sound waves

(Q).
Q: What is the total number of codons? Read this paragraph and choose the correct option from the provided answers: The mRNA is divided into three-base segments called codons. A codon is the segment of nucleotides that codes for an amino acid, or for a start or stop signal. There are 64 codons. Choices: - 45 - 51 - 68 - 64 A:
(A).
64