Question

13. Dead Echinoderms are naturally recycled to make which product?

They are the main ingredient in toothpaste.
They are the main ingredient in limestone.
They are the main ingredient in livestock feed.
They are the main ingredient in collagen.

Answer 1

Correct Answer: B

Step-by-step explanation:

Dead Echinoderms are the main ingredient in limestone. It's an important rock that's used in livestock feed, building materials, and toothpaste.

Hope that helps!! :)

Answer 2

They are the main ingredient in Limestone

Step-by-step explanation:

Dead Echinoderm endoskeletons are the main ingredient in forming the sedimentary rock, limestone.