The first task in using your oxygen cylinder is turning it on. Use the cylinder wrench to turn the oxygen cylinder valve by at least one half-turn counterclockwise. If your cylinder has come with an attached toggle, you may use this in place of the supplied wrench. ...
Carbon dioxide (a molecule made up from one carbon and two oxygen atoms—CO2 in chemists’ notation) is a greenhouse gas, which means it contributes to the so-called greenhouse effect. Carbon dioxide and other greenhouse gases in the air trap some of the heat Earth would lose into space, ...
At the ocean's surface, a small — proportion of gases like oxygen and carbon dioxide dissolve into the water — dissolved oxygen, for example, allows sea creatures to breathe.在海水表面，有很小一部分的气体，比如氧气和二氧化碳，溶解在海水中 (举个例子，氧的溶解可以让海洋生物呼吸)。And when t...
So does cooking meat on the stove in your kitchen. Nevertheless, it's a challenge to figure out the extent of our exposure to ultrafine particles. Because the particles are so small and so transient — they quickly disperse, or else coagulate into bigger particles — they're a type of ...
How does carbon dioxide enter a plant?Photosynthesis:Photosynthesis is the process by which a photosynthetic cell (e.g. in a plant) takes in water and carbon dioxide and yields glucose sugar and molecular oxygen. Respiration, in humans for instance, conversely yields carbon dioxide and water (...
the laying of drainage system and detergent used to grow, consume the oxygen in the water, fish died, deterioration of ecosystem. Human activities can make a lot of industrial and agricultural pollutants into the water, the water is polluted. The world each year about 4200 sewage into the riv...
What is green hydrogen, and how does it work? In the production of green hydrogen, machines called electrolysers are used for the electrolysis of water and breaking down water into oxygen. If you want to recreate this process, you can try using a graphite pencil, carbon-hydrogen, wires...
Plants take carbon dioxide out of the air and release oxygen. Don't burn garbage. This releases carbon dioxide and hydrocarbons into the atmosphere. To really stem the emission of greenhouse gases, we need to develop non-fossil fuel energy sources. Hydro-electric power, solar power, hydrogen ...
Oxygen Consumption CO2 : Carbon Dioxide Production EE: Energy Expenditure RER: Respiratory Exchange Ratio EGAIC: Expired Gas Analysis Indirect Calorimetry HRV: Heart Rate Variability ANS: Autonomic Nervous System RMSSD: Root Mean Square of Successive Differences pNN50: Percentage of successive...
The aerobic (oxidative) system: low intensity for a long duration. Important for endurance events but responsible for any exercise you do that last for more than two minutes. This system mostly produces energy from converted fat and carbohydrate in the presence of oxygen. ...