They are completely different. An estuary is where a river joins the sea or, it is an outflow of freshwater into the ocean or sea. A coral reef is a strictly marine environment created by thousands of tiny organisms over thousands of years. It consists of the calcium skeletons of reef building organisms overlaid with living corals, anemones, clams, snails, fish etc etc.
How should I know
bays, estuaries, coastal wetlands, shorelines
a low elavation of land formed from the surface of coral reefs
Coral reefs are salt water Ponds are fresh water
Coral Reefs don't really move and jellyfish move around, and sting people. Coral Reefs help other thins in the sea survive, where as jellyfish don't. The jellyfish are just there.
The coastal resources of Cebu are wetlands, estuaries, mudflats and mangrove forests, seagrass beds and coral reefs.
Marine regions cover about three-fourths of the Earth's surface and include oceans, coral reefs, and estuaries
The eels are found mostly in the coral reefs.
The four ocean margin habitats found along the continental shelf are rocky shores, sandy shores, estuaries, and coral reefs. Rocky shores are characterized by intertidal zones with rocks and boulders, while sandy shores have sandy substrates. Estuaries are semi-enclosed coastal bodies of water where freshwater from rivers mixes with saltwater from the ocean. Coral reefs are underwater structures formed by coral polyps and are found in warm, shallow waters.
Coral Reefs
no dolphins are not in coral reefs.
Marine regions cover about three-fourths of the Earth's surface and include oceans, coral reefs, and estuaries