21. Which animal product is used to make classical violin strings?
a) Sheep gut
b) Snake skin
c) Silk
d) Fish scales
22. What animal product is used to make traditional parchment paper?
a) Sheepskin
b) Snakeskin
c) Cowskin
d) Fishskin
23. Which animal product is used to make traditional Chinese ink?
a) Squid ink
b) Octopus ink
c) Fish scales
d) Bull gallstone
24. What animal product is commonly used to make baseballs?
a) Synthetic materials only
b) Cowhide
c) Sheepskin
d) Goat leather
25. Which animal product is used to make catgut strings for instruments?
a) Sheep intestines
b) Cat intestines
c) Cowskin
d) Snake intestines