[Part 3]- C11- Chemistry of The Earth’s Atmosphere 🌋
No description yet. This curated deck is ready for daily study.
Card preview (24)
Why might actions to reduce carbon dioxide emissions be limited ?
• most actions to reduce carbon dioxide emissions are expensive, and people are reluctant to pay
Why might actions to reduce carbon diode emissions through transport, be limited ?
• actions to reduce carbon dioxide emissions can be inconvenient, as most people prefer the convenience of driving instead of public transport
How can a person’s diet reduce emissions of methane ?
• people could eat less meat and dairy products because, grazing cattle [e.g- cows] release methane when they pass wind
How can landfill be used to reduce methane emissions ?
• methane can be trapped and burnt to produce electricity. • this is because, landfill can release methane [as methane-producing bacteria decompose waste and generate methane]
• Fill in the gaps: as methane is a much more ________ greenhouse gas than carbon dioxide, it is a good idea to trap and burn methane
• as methane is a much more powerful greenhouse gas than carbon dioxide, it is a good idea to trap and burn methane
Why might actions to reduce methane emissions through diet be limited ?
• people enjoy consuming meat and dairy products so, people are unlikely to change their diet
Why might actions to reduce methane emissions through landfill be limited ?
• trapping and burning methane to produce electricity, costs money
What is a fuel ?
• a fuel, is a substance that releases energy when combusted [ burned]
What are some examples of fuels ?
• examples of fuels include: • coal • and hydrocarbons
What do most fuels contain ?
• most fuels [including coal] contain sulfur, or carbon and/or hydrogen
• Fill in the gaps: the combustion of fuels is a major source of atmospheric pollutants
• the combustion of fuels is a major source of atmospheric pollutants
When a fuel is burned, when gases can be released into the atmosphere ?
• carbon dioxide • water vapour • carbon monoxide • sulfur dioxide • and, oxides of nitrogen
[Easy] What is water vapour ?
• water vapour, is the gaseous form of water [because when it is heated, liquid water forms a vapor]
How is carbon monoxide produced by burning fuels ?
• carbon monoxide is produced in an incomplete combustion [in the limited supply of oxygen]
How is soot produced by burning fuels ?
• soot [carbon particles] is produced, when diesel is burnt
How is sulfur dioxide produced by burning fuels ?
• sulfur dioxide [SO2] is produced when sulfur impurities in fossil fuels are oxidised
How are oxides of nitrogen produced by burning fuels ?
• oxides of nitrogen are produced
How are oxides of nitrogen produced by burning fuels ?
• oxides of nitrogen are produced in the oxidation of nitrogen gas in air, at high temperatures in vehicle engines
Is soot a particulate ?
• yes, soot is a particulate
What are the properties of carbon monoxide ?
• carbon monoxide is a toxic gas, that is colourless and odourless [has no smell] • this means it is not easily detected, so many people have carbon monoxide detectors in their homes
What is the promblem of increased sulfur dioxide and oxides of nitrogen in the air ?
• sulfur dioxide and oxides of nitrogen cause respiratory problems in humans, and cause acid rain • this is because, sulfur dioxide and oxides of nitrogen dissolve in rainwater, to form acid rain
What can acid rain do ?
• acid rain damage trees, and corrode buildings that are made from limestone
What are the problems, of increased amounts of particulates ?
• particulates can cause health problems in humans because, they can increase the risk of heart and lung disease • ; particulates can also cause global dimming because, they can reduce the amount of energy from the sun, that reaches the Earth’s surface
[Easy] What can global dimming do ?
• global dimming can affect rainfall patterns