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.
Seashore: the land that lies adjacent to the sea. Coral reef: a body of coral and coral consolidated into limestone, see: http://en.wikipedia.org/wiki/Coral_reef
An estuary is the wide mouth of a river, opening out to the sea and a coral reef is where fish live!
they both are under water
bays, estuaries, coastal wetlands, shorelines
How should I know
Coral reefs are salt water Ponds are fresh water
a low elavation of land formed from the surface of coral reefs
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.
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
A coral reef is an ecosystem, that is the similarity.