Coral reefs are striking, complex and important features and structures of the marine environment. Reefs are geological formations constructed from the accumulated skeletons of limestone-secreting animals and plants. The closely related plant and animal communities that created them are representative of an ecosystem found in the tropical and subtropical waters of the world's oceans and seas, most commonly in shallow, near-shore ocean waters, often close to land. . Coral reefs have the highest biodiversity of all marine ecosystems and provide important ecosystem services and direct economic benefits to large and growing human populations in coastal areas. The natural habitat of coral reefs located at the intersection of land, sea and air is both varied and variable and constitutes a potentially stressful and sensitive environment. Reef organisms have evolved certain adaptations spanning hundreds of millions of years to cope with recurring disturbances of: damage or destruction, followed by certain rates of recovery and regrowth in which the environmental setting can play a stimulatory role for recovery rates. These are natural features of coral reef history. However, recent global increases in the destruction and degradation of reef ecosystems appear to send a clear message that the pace and nature of recent environmental changes often exceed the adaptive capacity of coral reef organisms and communities. Tropical rainforests covered 30 million square kilometers, or more than 10 million square kilometers. percent of the Earth's land surface. Originally they covered at least twice this area. The tropical rainforest receives 4 to 8 meters of rain per year. This produces dense vegetation which deflects rainfall so that water reaches the middle of paper...... the rainforest provides us with a huge amount of oxygen, so its destruction will bring about the end of the human race. for us.5. Coral reefs constitute a biologically diverse environment. This means that there is a variety of species living on coral reefs that is greater than any other ecosystem in the world. Coral reef ecosystems are like bustling cities, with buildings made of coral and thousands of marine inhabitants coming and going, interacting with each other in the way humans do and go about their daily lives. In this sense, coral reefs are the main metropolises of the sea. Without coral reefs and rainforest, the world will be thrown into chaos without its benefits, so spare this ancient and underexploited tropical rainforest and coral reef from destruction by development and leave these areas designated. to be a national park with its vibrant life force.