The sun creates it's own light, also gives light and life to bunch of stuff like plants,animals,humans etc. photosyntesis is the process of making food which needs sun,water,nutrients etc.
Destruction of coral reefs would cause an imbalance in the ecosystem. Some species could be driven to extinction.
Coral reefs are the base of the most diverse marine ecosystem in the world. They are often referred to as the ‘rainforest’ of the oceans and seas. They provide shelter for cnidarians, sponges, crustaceans, and etcetera and provide hiding grounds from predators.
Roots
leaves
the stem
reproductive organs, such as male and female sex organs in flowers.
no energy is accuring because your hands are too cold