Afunction of steroids is to increase muscle mass to help you get an advantage on your competitors.
Xylem, which is a dead cell that carries water in only one direction: up
Its a mix of multiple things! coral bleaching and human impact, the plans for development on the area and the higher tourist rates, theres also a mining plan in which will negatively impact it as the mine will be placed on the outskirts of the great barrier reef, therefore the emissions from the coal mine will waft up in to the ocean affecting the micro organisms and other life within.
An independent variable is the one that you change and the dependent variable that changes when he independent variable changes.
Carbon dioxide is heavier than oxygen gas. It therefore displaces the oxygen gas around a flame. Without oxygen, the combustion reaction will stop and the flame will be put out.
Further Explanation:
In order for a combustion reaction to happen, three components must be present: fuel, oxygen, and heat to cause ignition. When one of these three is removed, the combustion reaction will stop.
CO2 fire extinguishers use the difference in mass of the CO2 and oxygen molecules to stop the fire. Since CO2 is heavier, it will displace any oxygen molecules that are around the flame. When this happens, the supply of the oxygen will be limited or cut-off and the fire will eventually be put out because of the lack of oxygen. This ability to displace oxygen is also what makes using CO2 as fire extinguisher quite dangerous for the user since it pushes away the oxygen that is needed for respiration.
Other ways to put out fire include spraying liquids that absorb the heat to avoid spreading the fire further or spraying substances that coat the fuel (flammable materials) to avoid contact with oxygen gas which can lead to further combustion.
Learn More
- Learn more about combustion brainly.com/question/9641392
- Learn more about fire extinguisher brainly.com/question/3905469
- Learn more about respiration brainly.com/question/1448925
Keywords: carbon dioxide, fire, combustion
