Question

1. Fill in the blanks and explain.

a. Sound does not travel through.............

b The velocity of sound in steel is
............. than the velocity of
sand in water.

c. The incidence of ............... in daily life shows that the velocity of sound is less than the velocity of light.

d. To discover a sunken ship or objects deep inside the sea, ................ technology is used.

please answer this question ​

Answer 1

Answer:

(a) vacuum

(b) higher

Explanation:

have a nyc exm

Answer 2

Answer:

a) liquid

b) more

c)thundering

d) SONAR