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What processes removes carbon dioxide from the air or water?
Photosynthesis in plants and algae is a natural process that removes carbon dioxide from the air. In water, carbon dioxide can be absorbed by algae and other aquatic plants through a process called aquatic photosynthesis. Additionally, chemical weathering of rocks can also help remove carbon dioxide from the atmosphere over long periods of time.
Natural factors that decrease greenhouse gases?
Natural factors that decrease greenhouse gases include the carbon sequestration process, where plants absorb carbon dioxide during photosynthesis, and the role of oceans in absorbing carbon dioxide from the atmosphere. Additionally, natural weathering processes of rocks can help to remove carbon dioxide from the air over long periods of time.
What processes remove it from the atmosphere?
Plants photosynthesize and absorb carbon dioxide from the atmosphere, converting it into oxygen and biomass. Ocean uptake is another important process where carbon dioxide dissolves into the seawater. Additionally, chemical weathering of rocks and minerals over long periods of time also helps in removing carbon dioxide.
What earth process helps remove carbon dioxide from the atmosphere?
The process of photosynthesis helps remove carbon dioxide from the atmosphere.
Are lime sinks constructive or destructive?
Lime sinks are considered to be destructive forces. A destructive force is a form of erosion, weathering, and also impacts organisms.
Which rock removes CO2 from the atmosphere?
Limestone rocks remove CO2 from the atmosphere through a process called weathering. When exposed to rainwater and carbon dioxide, limestone undergoes chemical reactions that convert CO2 into calcium bicarbonate, which eventually ends up in the ocean through rivers, effectively sequestering the carbon.
What gases are passed through limestone?
Carbon dioxide and sulfur dioxide are commonly passed through limestone during processes such as flue gas desulfurization in power plants to help remove impurities and pollutants.
What is the purpose of limestone in the blast furnace?
Limestone is added to the blast furnace as a flux material. It helps to remove impurities in the iron ore by forming a molten slag that floats on top of the molten iron. This slag can then be easily separated from the iron.
What are the three substances fed into the blast furnace?
The three substances fed into the blast furnace are iron ore (in the form of sinter, pellets, or lumps), coke (a form of carbon derived from coal), and limestone (which helps remove impurities from the iron ore and acts as a flux).
Why do people remove limestone from quarries?
Limestone is used as a building material and in chemical industry.
What substance are mixed with iron ore in the blast furnace?
Coke (a form of carbon) and limestone are mixed with iron ore in the blast furnace. Coke provides the heat source for the chemical reaction, while limestone helps to remove impurities from the iron ore.
Which three substances are put into the blast furnace?
In a blast furnace, iron ore (Fe2O3), coke (carbon), and limestone (CaCO3) are commonly used. Iron ore is the source of iron, coke acts as a fuel and reduces the iron ore to iron, and limestone helps remove impurities by forming a slag.
What raw materials are used in a blast furnace?
Iron ore or Haematite (Fe3O2), Carbon in the form of 'Coke', and Limestone (Calcium Carbonate 'CaCO3') are all used in the blast furnace. Iron Ore is melted down with coke, the coke burns heat into the furnace. Oxygen gas is blasted in from the sides. The carbon (C) and oxygen (O2) react to form carbon dioxide gas (CO2). At higher temperatures more carbon (C) is reacted with the carbon dioxide(CO2) to create carbon monoxide (2CO). The carbon monoxide 'steals' the oxygen from the iron oxide (Fe3O2), reducing the iron oxide to iron. Due to the impurities in the iron, it is called 'pig iron'. Limestone (CaCO3) is added to remove the impurities from the iron. The limestone (CaCO3) reacts with mainly silicate in the iron, and becomes calcium silicate (CaSiO3) and carbon dioxide (CO2). Calcium silicate is known as 'slag' and is used for construction.
What occurs during the decomposition of iron ore?
During the decomposition of iron ore, heat is applied to break down the ore into iron and carbon dioxide. This process is usually done in a blast furnace, where the iron ore is mixed with coke (a form of carbon) and limestone. The limestone helps to remove impurities and creates slag, while the coke provides the carbon needed to reduce the iron ore to molten iron.
What could take a layer of limestone away from a fossil?
If the fossil is replaced with silica the easiest way to remove the limestone is with weak acid such as vinegar. If the fossil is also limestone the best way to free it is by carefully removing the limestone with small picks and drills. This is usually best left to expert conservators as it can be delicate work.
What processes removes carbon dioxide from the air or water?
Photosynthesis in plants and algae is a natural process that removes carbon dioxide from the air. In water, carbon dioxide can be absorbed by algae and other aquatic plants through a process called aquatic photosynthesis. Additionally, chemical weathering of rocks can also help remove carbon dioxide from the atmosphere over long periods of time.
What is added to remove rocky waste and it forms molten slag?
Limestone
