Sedimentary Rock That Contains Skeletal Remains
Puzzle 4 of Tennis Medium Pack
Question is: Sedimentary Rock That Contains Skeletal Remains
and the answer is: LIMESTONE
Word Meaning:
LIMESTONE — An abundant rock of marine and freshwater sediments; primarily composed of calcite (CaCO₃); and occurring in a variety of forms, both crystalline and amorphous.
Definitions from Wiktionary.