Human Impact on the Carbon, Phosphorus, and Nitrogen Cycles Introduction Except for small amount of cosmic debris that enters the Earth's atmosphere, the Earth is a closed system for matter. All the elements needed for the structure and chemical processes of life come from the elements that were present in the Earth's crust when it was formed billions of years ago. This matter is continually cycling the atmosphere, hydrosphere, biosphere, and lithosphere, from periods of a few days to millions. Humans can either help or hurt things. The carbon, nitrogen and phosphorus cycles are the three cycles of matter in ecosystems.
9 Foods that Cause Inflammation and 9 Ways to Fight it
9 Foods that Cause Inflammation and 9 Ways to Fight it « Solluna by Kimberly Snyder
The molecular formula of carbon dioxide is CO2. Carbon dioxide is a naturally produced nontoxic gas that has no smell. Carbon Dioxide is the most abundant greenhouse gas on the planet next to water vapor. In solid form it is commonly known as dry ice. It is a gas that is mandatory to the survival of most, if not all, living organisms on this planet.
It can be found in the sun, the stars, comets, and the atmospheres of most planets. There are close to ten million known carbon compounds, many thousands of which are vital to the basis of life itself WWW 1. Carbon occurs in many forms in nature. One of its purest forms is diamond. Diamond is the hardest substance known on earth.
Energy moves life. The cycle of energy is based on the flow of energy through different trophic levels in an ecosystem. Our ecosystem is maintained by the cycling energy and nutrients obtained from different external sources. At the first trophic level, primary producers use solar energy to produce organic material through photosynthesis. The herbivores at the second trophic level, use the plants as food which gives them energy.