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"carbon dioxide" - 61 õppematerjali

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Carbon capture and storage

Humans are changeing the planet with their ordinary life. The principle cause of climate change is the increase in carbon dioxide concentrations in the atmosphere. The main cause of that is the burning of fossile fuels. This is leading to the global warming. People have discovered a way to reduce the amount of CO2 in the atmosphere. It is possible to seperate the CO2 from the other gases by adding liquid which is very good at absorbing CO2. Then it can be pumped to underground. Scientist came up with this idea because methane gas has been down there for thousands of years and it has not come up...

Akadeemiline inglise keel
39 allalaadimist
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Molaarmassi määramine süsinikdioksiidi kolmel erineval viisil

The aim of the experiment To determine the molar mass of carbon dioxide in three different ways; 1) using the Ideal Gas Law equation, 2) using the molar volume of a gas at NTP, 3) using the relative density to air Equipment CO2 tank, a flask with a rubber stopper (300 cm 3), technical balance, measuring cylinder (250 cm3), thermometer, barometer. Method 1. Determine the mass (m1= mflask+stopper+air) of the dry flask with a rubber stopper by weighing on a technical balance. Draw a line on the flask at the bottom edge of the...

Keemia ja materjaliõpetus
6 allalaadimist
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Education

Faculty and students should together study the wells, mines, farms, feedlots, and forests that supply the campus as well as the dumps where you send your waste. Collectively, begin a process of finding ways to shift the buying power of this institution to support better alternatives that do less environmental damage, lower carbon dioxide emissions, reduce use of toxic substances, promote energy efficiency and the use of solar energy, help to build a sustainable regional economy, cut long- term costs, and provide an example to other institutions. The results of these studies should be woven into the curriculum as interdisplinary courses, seminars, lectures, and research. No student should graduate without understanding how to analyze resource flows and without the opportunity to...

Inglise keel
125 allalaadimist
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Hüdroenergia - ettekanne

You don't have to fear about the increasing cost of fossil fuels like oil and natural gas. *The second advantage is that hydroelectric plants last longer than fuel-fired plants. Some hydro plants have been operational about 100 years. *Operating labor costs are low as well because the plants are automated. *And Because the hydroelectric dams do not burn fossil fuels, they do not directly produce carbon dioxide . *The reservoirs can also provide facilities for water sports, and become tourist attractions themselves. In many countries farming fish in the reservoir is common. Also large dams can control floods. The reservoirs can also improve transport. on the other hand there are some Disadvantages *Hydroelectric projects can be disruptive to surrounding ecosystems both upstream and downstream. For...

Inglise keel
27 allalaadimist
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Planet venus

Because of these similarities, it was thought that Venus might even have life. Venus is also called the Morning star or the Evening star, because it reaches its brightness shortly before sunrise or shortly after sunset. It is the brightest object in the sky except for the Sun and the Moon. During the last few years the scientists have found that Venus and Earth are very different. It has no oceans and is surrounded by a heavy atmosphere composed mainly of carbon dioxide with virtually no water vapor. There are strong winds at the cloud tops but winds at the surface are very slow, no more than a few kilometers per hour. The surface of Venus retains a constant temperature between day and night and between the equator and the poles. We can't see the surface of Venus from Earth, because it is covered with thick clouds that strongly reflect sunlight. However, space missions to Venus have shown us that its...

Inglise keel
13 allalaadimist
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The importance of the rainforest

It is estimated that the Amazon alone is vanishing at a rate of 20,000 square miles a year. If nothing is done to curb this trend, the entire Amazon could well be gone within fifty years. Massive deforestation brings with it many ugly consequences-air and water pollution, soil erosion, malaria epidemics, the release of carbon dioxide into the atmosphere, the eviction and decimation of indigenous Indian tribes, and the loss of biodiversity through extinction of plants and animals. Fewer rainforests mean less rain, less oxygen for us to breathe, and an increased threat from global warming. But who is really to blame? Consider what we industrialized Americans have done to our own homeland. We converted 90 percent of North America's virgin forests into firewood, shingles, furniture, railroad ties, and paper...

Inglise keel
24 allalaadimist
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Global Warming

Furthermore, warmer temperatures would widen the range of disease carried by rodents and mosquitoes. This increase of temperatures is happening at a pace that outstrips anything the Earth has seen in the past 100 million years. We have caused all of this over many years of over industrialization in this growing world. Many different things cause the greenhouse effect. The amount of carbon dioxide in the atmosphere is increasing because of the massive consumption of fossil fuels such as oil, coal, and natural gas. Another contributing factor is the the amount of forest logged. Every second of the day the area of a football field in trees is cleared by either being logged or burnt. The potential costs of cutting down on greenhouse gas emissions might sacrifice economic growth and our standard of living. By doing this we might need to change our habits and behavior...

Inglise keel
78 allalaadimist
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UK Test

Which country has the greatest proportion of its land devoted to National Parks and other countryside conversation areas: England, Scotland, Wales or Northen Ireland? 4. Which is the main contributing gas to the greenhouse effect? 5. Which fortification in Britain dates from the Roman era and is listed in the World Heritage List? 1. Area of outstanding natural beauty 2. Wetlands 3. Northen Ireland 4. Carbon dioxide 5. Hadrian's Wall, in the north of England Physical geography 1. Which of the following countries is the nearest continental neighbour to Great Britain: Denmark, Portugal, France or Greece? 2. Which of these cities are close to the same line of latitude as London: Berlin, Moscow, New York, Vancouver, Calcutta, Warsaw and Nairobi? 3. How long would it take for a plane, travelling at 750 kilometres per hour, to fly over...

Inglise keel
15 allalaadimist
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Rainforest destruction

· Tourism ­ turism. · Poverty and overpopulation ­ vaesus ja ülerahvastatus. · Colonialism ­ kolonialism. Why save it? · The rainforest is home to over · Vihmamets on koduks rohkem fifty percent of all plants and kui 50 % maa loomadele ja animals on earth. It is the taimedele. See on maa elav earth's living lung--it breathes kops ­ see hingab sisse karbon in carbon dioxide and breathes dioksiide ja hingab välja out oxygen. Some rainforests hapniku. Mõned vihmametsad are an unexplored frontier, with on uurimata piiralaga, kus on all kinds of new animals and igasuguseid uusi loomi ja isegi even new tribes of people. The uusi inimeste hõime. NWF pani National Wildlife Federation in aastal 1993 kirja kümme põhjust miks me peaksime 1993 listed ten reasons why...

Inglise keel
22 allalaadimist
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Tuuma energia

Tartus secondary school of business Nuclear Power Helena Nulk form 11b Tartu 2009 Table of contents Introduction..........................................................................................................................................3 What is nuclear power?....................................................................................................................3 Nuclear life cycle.............................................................................................................................3 What is nuclear energy?...................................................................................................................3 What is nuclear fusion?....................................................................................................................4 What is...

Füüsika
22 allalaadimist
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Environment and transportation

Do as many of these as you can, and encourage your friends and family to do the same. Together we can make a difference! 1. Get a Better Vehicle --- If you need to drive, replace your old car with one of the new hybrid gas and electric cars - and you could save as much as $11,000 on gas and produce 107 fewer tons of carbon dioxide . The new efficient hybrids are reliable and drive just like standard cars. If you make no other transportation changes in your life, this one will make a huge difference. 2. Walk to Your Destination --- If it's a reasonable distance, you'll save energy and improve your health. Walking also helps to reduce tension and stress. Get some good walking shoes, dress for the weather, and hoof it! 3. Ride Your Bike --- If you need to travel a greater distance, take your bike. Again,...

Inglise keel
22 allalaadimist
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Loodusprobleemid inglise keeles.

is rising · Greenhouse Pole is melting friendly effect · Extinction of products · Ozone layer is animals damaged · Extinction of · Large plants quantities of · Water level carbon dioxide increases There are less · Deforestation · Less habitats · Recycle paper forests · Illegal logging for · Organize · Forest fires animals/birds campaigns · Massive paper · Less oxygen against wasting · More expensive deforestation...

Inglisekeelne geograafia
14 allalaadimist
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Energeetika arengu plaanimine

These metals are often found in functional molecules such as the porphyrins which include chlorophyll which contains magnesium. Fossil fuels Fossil fuels such as coal, oil and gas are also derived from biological material, however material that absorbed CO2 from the atmosphere many millions of years ago. As fuels they offer high energy density, but making use of that energy involves burning the fuel, with the oxidation of the carbon to carbon dioxide and the hydrogen to water (vapour). Unless they are captured and stored, these combustion products are usually released to the atmosphere, returning carbon sequestered millions of years ago and thus contributing to increased atmospheric concentrations. The vital difference between biomass and fossil fuels is one of time scale. Biomass takes carbon out of the atmosphere while it is growing, and returns it as it is burned. If it is...

Energeetika arengu plaanimine
38 allalaadimist
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Acid rains

Acid rains Stefani Nimtsuk What is acid rain? Rain or any other form of precipitation that is unusually acidic It can have harmful effects on plants, aquatic animals, and infrastructure through the process of wet deposition Acid rain is caused by emissions of compounds of ammonium, carbon , nitrogen, and sulfur which react with the water molecules in the atmosphere to produce acids History Since the Industrial Revolution, emissions of sulfur dioxide and nitrogen oxides to the atmosphere have increased In 1852, Robert Angus Smith was the first to show the relationship between acid rain and atmospheric pollution in Manchester, England Though acidic rain was discovered in 1852, it was not until the late 1960s that scientists began widely observing and studying the phenomenon The term "acid rain" was generated in 1972 Canadian Harold Harvey was among the first to research a "dead" lake Public awareness of acid rain in the U.S in...

Inglise keel
8 allalaadimist
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Acid rains üldine kokkuvõte

It can have harmful effects on plants, aquatic animals, and infrastructure through the process of wet deposition. Acid rain is caused by emissions of compounds of ammonium, carbon , nitrogen, and sulfur which react with the water molecules in the atmosphere to produce acids. Governments have made efforts since the 1970s to reduce the production of sulfuric oxides into the Earth's atmosphere with positive results Since the Industrial Revolution, emissions of sulfur dioxide and nitrogen oxides to the atmosphere have increased.[2][3] In 1852, Robert Angus Smith was the first to show the relationship between acid rain and atmospheric pollution in Manchester, England.[4] Though acidic rain was discovered in 1852, it was not until the late 1960s that scientists began widely observing and studying the phenomenon. The term "acid rain" was generated in 1972. [5] Canadi...

Inglise keel
7 allalaadimist
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Green Technologies - kokkuvõte

Green Technologies - innovation and climate change ­ sustainagility Scientists can examine ice, but they cannot tell out anything about our future. Even if scientist has lived thousand years he won't be able to do it. The graph in video shows that the amount on carbon dioxide rises and then rises the temperature, but it is not so, it is exactly the opposite. One way to save energy is to build better buildings, because big headquarters are built to last only for 30-35 years. Building them up and pulling them down needs a lot of energy and about 30% of building energy is spent on it. It is thought that if in Tokyo 50% of all roofs are green it will save 1 million dollars a day of Tokyo businesses in cooling costs...

Akadeemiline inglise keel
47 allalaadimist
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Hingamine, põlemine ja fotosüntees

Kõik elus organismid, sealjuures bakterid, hingavad. Vaid üksikud bakteriliigid, kes elavad veekogude põhjamudas, sõnnikukuhilas või sügaval mullas, ei kasuta hapniku. Neile on hapnik mürgine ja õhu kätte sattudes nad hukkuvad. Inimesed ja paljud teised organismid kasutavad hingamiseks õhus sisalduvat hapnikku. Kui võrdleme sissehingatud ja väljahingatud õhu koostist, siis selgub, et sissehingatavas õhus on rohkem hapnikku kui väljahingatavas õhus. Väljahingatavas õhus on rohkem süsihappegaasi (carbon dioxide ). Hapnikku kasutab organism elutegevuseks, energia saamiseks, liikumiseks, rakkude ülesehitamiseks. Ainevahetusel tekkinud süsihappegaas eraldub väljahingatava õhuga. Sissehingatava õhu peamine koostis: Hapnik: ~21% Lämmastik: ~78% Süsihappegaas: ~0.4% Väljahingatava õhu peamine koostis: Hapnik:~16% Lämmastik: ~78%...

Bioloogia
35 allalaadimist
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The most pressing environmental issues in Estonia

Also we have, for example, deforestation problem and traffic jams, for instance, in Tallinn in rush-hour. Nevertheless, those problems are not so significant than previous. One of the biggest problems in Estonia is air and water pollution. One example of air pollution is exhaust fumes. Today we have a lot of transport: cars and buses, in the main in our capital. Gases which are produced by cars contain carbon dioxide . This carbon dioxide in the air causes global warming, which is the result of the green house effect. Furthermore, it will change our climate. In addition our air is polluted by hydrogen sulfide (H2S) from plants and factors. Substantially, in Kohtla-Järve and Maardu. Our water is also polluted. We can't drink it, because there are a lot of chemical ingredients. In some cities water is chlorine a lot. As I know a lot of waste waters are putting out to see, near in the beach...

Business english
75 allalaadimist
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Is global climate change man-made or not?

Is global climate change (global warming) man-made or not? Over the last hundred years the Earth has been warming. This warming is believed to lead to many issues such as increasing of nature disasters, weather changes and draught. All of these consequences could become a reason of economic decay in many countries, especially in some undeveloped countries. Therefore it is very important to find out who is guilty of the climate changing. Many people are confident that the reason of global warming is man made carbon dioxide . Over the last hundred years our society has been developing very fast: there has been built a huge amount of different factories, has been made so many inventions in all fields of human activity. Unfortunately only recently we have noticed that by making our life more comfortable and more enjoyable we destroy nature and cause appearance of ozone holes wh...

Akadeemiline inglise keel
75 allalaadimist
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Renewable energy

What consequence might there be if we use non-renewable energy too much? Which energy technology is the world's fastest growing? With what name is renewable energy also known as? Light Heat Electricity Generated from natural resources. Doesn't harm the environment. Can't be replenished Most of our energy. May cause global warming. Wind energy is the fastest growing. Most renewable energy comes from the sun. Hydroelectric energy is the oldest and largest source. Renewable energy a.k.a "green" energy. Thank you for listening! We use energy every day. It surrounds us in different forms, such as light, heat, and electricity. Our bodies use the energy stored in molecules of substances like carbohydrates and protein to move, breathe, grow, and think. We also use energy to do work and to play. Humans have invented thousa...

Inglise keel
12 allalaadimist


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