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Octane is a compound. octane + O2 = CO2 + H2O + Energy, You can tell by the inputs and outputs. Octane and Oxygen inputs and Carbon dioxide and water outputs, means Octane must consist of hydrogen H and carbon C, thus a compound not an element.
Water carbon nitrogen
Nitrogen is a gas at room temperature.
As energy and matter flow through an ecosystem, matter must be recycled and reused. Substances such as water, carbon, nitrogen, calcium, and phosphorus each pass between the living and nonliving worlds through biogeochemical cycles.
The flow of high quality energy, the cycling of matter and gravity
The inputs for photosynthesis are light (which is energy), water (which is matter), and carbon dioxide (which is also matter).
Octane is a compound. octane + O2 = CO2 + H2O + Energy, You can tell by the inputs and outputs. Octane and Oxygen inputs and Carbon dioxide and water outputs, means Octane must consist of hydrogen H and carbon C, thus a compound not an element.
This is a type of testing in which two or more variants of a component are tested with same inputs and their respective outputs are compared and analyzed in case of any discrepancies. Best example for Back to Back testing is testing two versions of a component with same inputs and comparing the outputs. The outputs are analyzed if there are any discrepancies. Note: For software in ATM centers the outputs should be same with same inputs no matter how the data is analyzed at the back end.
Energy nitrogen and oxygen
We do proximate analysis of the matter to know the nitrogen (protein), oil (fat), mineral, ash content etc to have an idea about the energy contained in that matter.
Air is matter, because it is composed of atoms like oxygen, hydrogen, carbon dioxide, and nitrogen, which, although invisible, have mass and are matter. Heat, on the other hand, is not matter. When you feel "heat," it is merely energy transferring from a hot object to yourself, and the energy itself is not matter.
Water carbon nitrogen
both oxygen and nitrogen occupy space and has volume and hence are examples of matter.
Carbon and nitrogen -- through human-intervened composting or nature-induced erosion -- are most responsible for the organic matter in humus.Specifically, organic matter contains the organic compounds carbon and nitrogen. Carbon functions as the energy-driving source. Proper composting and erosion result in soil with a 10:1 ratio of carbon to nitrogen.
There are classically three states of matter -- solid, liquid and gas. Helium and Nitrogen are gasses.
A substance (matter) like carbon, nitrogen, etc. (as opposed to energy, which isn't recycled. Energy flows just one way and is not recycled, unlike material substances.
When we talk about matter in an ecosystem or the environment, we are talking about substances such as water, carbon, nitrogen, and oxygen. These substances are examples of matter. Matter cannot be created or destroyed. Water, carbon, nitrogen, and oxygen must be recycled somehow in the environment, which also ensures that we do not use up or lose these essential materials.