English Answer:
Coral reefs are made of a living layer of coral on top of the skeletons of previous generations.
So they are primarily made of non living coral
But they are referred to living reefs as they continue to grow and live.
North America, Europe, and Oceania consist mainly of developed countries. These continents generally have high standards of living, advanced infrastructure, and strong economies.
Mainly the air, the water, and the rocks and soil.
Sand
The securities held as assets by the Federal Reserve Banks consist mainly of
Romans (?)
The sun (sol) is not alive. It is sometimes referred to as 'alive', but this is used only to acknowledge that it has not run out of fuel. A star that has run out of all its fuel is referred to as 'dead', but all stars are merely balls of gas and other materials. There is nothing living about them. Some might think it's living because it belongs with the solar system but it isn't because it doesn't have all the characteristics of life.
There are several things in the environment that are biotic. They mainly consist of plants and animals. Biotic means living things.
keratin
it consists of cellulose...
Gazelles mainly prefer living in bushy savannas or open grassland. Gazelles habits consist of grazing all throughout the day and simply roaming the area.
yup...some of the most primitive animals still alive today are crynoids, which mainly inhabit coral colonies...stoney corals have a calcium skeleton which grows in small increments (mm's per year)...unfortunaley,, the majority of stoney corals are undergoing a rapid extinction, exibiting bleaching (where the live animal dies leaving only the white skeleton behind...many scientists contribute pollution pesticide runoff and global warming...soft coral do not have a calcium skeleton and are mainly classified as polyps or mushroom corals...all corals (especially stoney corals) need nutrient poor clean water to thrive, as well as basically unchanging water temperatures.
it is mainly consist of carbon monoxide