The microscopic building blocks of coral reefs are
limes porous complex made electrons cells white helium atoms
A B C D E F G H
Coral reefs are limestone formations composed of tiny sea organisms and their remains.
The microscopic building blocks of coral reefs are cells
The microscopic building blocks of coral reefs are (A) limes (B) porous (C) complex (D) made (E) electrons (F) cells (G) white (H) helium atoms