1-) high sounds are made by:
a) fast vibrations< =your answer
b) slow vibrations

2-) low sounds are made by:
a) fast vibrations
b) slow vibrations< ==your answer

3-) sound travels in:
a) lines
b) waves< =your answer

4-) sound would travel fastest through:
a) water
b) air< ==your answer
c) wood

5-)sound travels most slowly through:
a) liquids
b) gases< =your answer
c) solids
hope this