Generally,​ ​coral​ ​reefs​ ​are​ ​found​ ​in​ ​shallow​ ​waters​ ​between​ ​​ ​degrees​ ​N​ ​latitude and​ ​​ ​degrees​ ​S​ ​latitude.

30 degrees;

30 degrees

Explanation:

Coral reefs are formed when the skeleton of the corals merge and combine with each other. The formation of coral reefs takes many years . Corals are the organism living in the ocean. They live in dense colonies and clusters. Coral reefs provides an ecosystem for other marine organisms to live in. The species live in the coral reefs and maintain their population. Corals live in the region of the ocean that has warm water and between the latitudes of 30 degrees North and 30 degrees South.

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.