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[主观题]

Carbon dioxide as a fire fighting agent has which advantage over other agents？A.It causes

Carbon dioxide as a fire fighting agent has which advantage over other agents？

A.It causes minimal damage

B.It is safer for personnel

C.It is cheaper

D.It is most effective on a per unit basis

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发布时间：2020-09-17

更多“Carbon dioxide as a fire fighting agent has which advantage over other agents？A.It causes”相关的问题

第1题

Green plants take in carbon dioxide and give off oxygen in a food-making process called ph

otosynthesis．

A.donate

B.check

C.withhold

D.release

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第2题

阅读理解：阅读下面短文，选择合适的内容将短文补充完整。A. to cook or heat your homeB. checke

阅读理解：阅读下面短文，选择合适的内容将短文补充完整。

A. to cook or heat your home

B. checked regularly

C. to reduce air pollution

D. Use less electricity

E. Raising any sort of livestock

Man-made air pollution mainly comes from two sourcesA、mobile ones and stationary ones. Mobile sources are cars, planes, boats, etc. Stationary sources include large factories, power plants and every household, which burns natural gas or wood. The most important ways _____ are to drive less, use less electricity and natural gas, and eat vegetarian.

_THESE IDEAS ARE EASY TO FOLLOW:_

1. Get your car _____ to make sure everything works properly. Whenever possible, walk, cycle, carpool, or use public transportation. Buy fuel-efficient vehicles. Drive at 60 mph or less to improve gas mileage.

2. Burn less natural gas _____ . Instead, use a solar cooker or heater and wear extra layers.

3. Become a vegetarian or a vegan. _____ requires more land and emits more carbon dioxide than simply growing crops directly for human food.

4. _____. Coal power plants produce most of the world’s electricity, and they also produce more carbon dioxide than any other source. Coal plants also release many other pollutants. Unplug televisions, cell phone chargers, and other appliances while not in use. Most devices continue to use small amounts of power even when they’re turned off. Avoid using air conditioning, and don’t leave the fridge open any longer than necessary. Only run the clothes washer or dish washer when full. Rather than using a dryer, hang clothes on a line to dry in the sun.

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第3题

完成下列各选项 A A greenhouse is a building made of glass whi

ch is used for keeping plants warm when the outside temperature is how．In a similar way there are several gases in the atmosphere which trap(捕捉)the heat produced by the sun and prevent it from escaping．These gases are known as“greenhouse gases“，and the way in which they trap heat in the atmosphere is called the “greenhouse effect”．This is not simply air pollution．Most of the main greenhouse gases exist naturally in small amounts in our atmosphere．And without them earth would be 30 degrees colder and human life would not exist．In other words，the greenhouse effect is a natural course which is to some degree helpful to us． The problem is that in the last century and a half．we have been putting too many 0f these gases into the earth’s atmosphere by burning large quantities of coal and oil and by cutting down forests．The rapid increase in greenhouse gases is making the world warmer．The world's temperature has already gone up by half a degree this century，and the sea level has risen by lo centi-metres．If the amount of carbon dioxide(二氧化碳)in the atmosphere doubles，there will probably be a rise in the earth’s temperature of between l and 4 degrees．This may seem a small in—crease，but it would be enough to cause major changes in geography and agriculture．Large areas of the world would be flooded．and some areas would become dry and unable to produce crops．It is important，too，to consider that there may be a delay of about 30 years in the greenhouse effect．This means that we’re probably experiencing only now the effect of the gases put into the atmosphere before the l960s．Since then，our use of these gases has greatly increased． “Greenhouse effect”means________．

A.a natural course which is to some degree helpful to us

B.the way．in which gases are used for keeping plants warm

C.the way“greenhouse gases”trap heat on the earth

D.the whole course in which greenhouse gases prevent heat

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第4题

根据以下内容回答题，There was one thought that air pollution affected only the area immedia

根据以下内容回答题，

There was one thought that air pollution affected only the area immediately around large cities with factories and heavy automobile traffic．At present，we realize that although these are the．areas with the worst air pollution，the problem is literally worldWide．On several occasions over the past decade，a heavy cloud of air pollution has covered the east of the United States and brought health warnings in rural areas away from any major concentration of manufacturing and automobile tmmc．In fact，the very climate of the entire earth may be infected by air poilu-tion．Some scientists consider that the increasing concentration of carbon dioxide in the air resulting from the burning of fossil fuels（coal and oil）is creating a“greenhouse effect”——con-serving heat refleeted from the earth and raising the world’S average temperature．If this view is correct and the worid’s temperature is raised only a few degrees，much of the polar ice cap will melt and cities such as New York，Boston，Miami，and New Orleans will be in water． Another view．1ess widely held，is that increasing particular matter in the atmosphere is blocking sunlight and lowering the earth’s temperature——a result that would be equally disas-trous．A drop of just a few degrees could create something close to a new ice age，and would make agriculture difficult or impossible in many of our top fanning areas．Today we do not know for sure that either of these conditions will happen（though one recent government report drafted bv experts in the field concluded that the greenhouse effect is#cry possible）．Perhaps，if we are lucky enough，the two tendencies will offset each other and the world’s temperature will stay about the same as it is now．

As Dointed out at the beginning of the passage，people used to think that air pollution__________ ．

A.caused widespread damage in the countryside

B.affected the entire eastern half of the United States

C.had a damaging effect on health

D.existed merely in urban and industries areas

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第5题

Which Low Carbon Technology Is Now a Reality？A．With fossil fuels expected to supply over 7

Which Low Carbon Technology Is Now a Reality？

A．With fossil fuels expected to supply over 70% of the world"s energy needs by 2040， we face some urgent questions: where should efforts be focused in reducing greenhouse gas emissions？ Which technologies hold the most promise？ There are a range of low-carbon solutions and given the challenge， we will need them all．We hear a lot about the advances being made by refreshable sources of energy such as solar， wind and hydro-electricity and these are certainly valuable technologies in combating climate change．But how can we really make a m jor impact in reducing carbon emissions from large power plants and industrial facilities？ Enter carbon capture and storage——or CCS——a technology that captures CO2 from fossil fuel production and permanently stores it underground．

B．The aim is to prevent the release of large quantities of CO2 into the atmosphere （from fossil fuel use in power generation and other industries ）．It is a potential means of relieving the contribution of fossil fuel emissions to global warming and ocean acidification （酸化）．Although CO2 has been injected into geological formations for several decades for various purposes， including enhanced oil

recovery， the long term storage of CO2 is a relatively new concept．The first commercial example was Weyburn in 2000．CCS can also be used to describe the scrubbing （涤气） of CO2 from environmental air as a climate engineering technique．

C．In November 2014 the Global CCS Institute released its flagship （核心的） publication——the annual Global Status of CCS report．This comprehensive annual update is the prominent source of information on the development of CCS around the world．A lot of work went into updating information in the report， in cooperation with the CCS industry， as there had been quite significant changes to the CCS landscape in the preceding 12 months．This included the launch of a large-scale

CCS project in the power sector and the beginning of construction of the world"s first large-scale CCS project in the iron and steel sector．

D．Large-scale CCS is now a reality in the power sector with the October 2014 launch of the Boundary Dam Integrated Carbon Capture and Storage Demonstration Project in Saskatchewan， Canada．Boundary Dam is the first commercial CCS plant in the power sector， removing 90 per cent of the CO2 produced by electricity generation from lignite （褐煤） coal at Production Unit No．3 of the SaskPower facility．The captured CO is primarily used for enhanced oil recovery （EOR） at the nearby Weyburn oil field， although amounts are also to be stored in deep geological formations at the Aqnistore site．The success of the Boundary Dam project and the progression of additional

projects through planning and construction， indicates that CCS technologies for application in the power sector are "market ready"．

E．The next 18 -24 months will see CCS be applied across a range of industries and storage types．A further two large-scale CCS power projects are in construction in the US——the Kemper County Energy Facility in Mississippi and the Petra Nova Carbon Capture Project in Texas．Both projects are expected to be operational in 2016．Also in the US， the Illinois Industrial CCS project planned for launch later this year will capture CO2 from the Archer Daniels Midland corn-to-ethanol （乙醇） plant in Decatur， Illinois for storage in an onshore deep saline formation．The Abu Dhabi CCS project in the United Arab Emirates is under construction and from 2016 will provide the world"s first large- scale demonstration of CO2 capture from iron and steel production．

F．In addition to the 22 large-scale CCS projects currently in operation or construction around the world，14 projects are in advanced stages of planning， many of which are likely to be in a position to make a final investment decision over the coming year．Together this group of projects covers a range of applications for CCS and could extend to around ten in the number of large-scale CCS projects operating in the power sector by the end of the decade．Their progression to operation would add experience in the dedicated geological storage of CO．and see operational large-scale CCS activity extend to China for the first time．

G．2014 saw commercial application in the power sector become a reality and we can look forward to a further expansion across a diverse range of industries in the coming years．The Global CCS Institute continues to cover developments in CCS with up-to-date information， expert insights， workshops， media releases and online seminars．We struggle to make CCS industry information easily accessible and encourage you to engage with us via our website and regular publications．

H．For detailed information on large-scale CCS projects please visit our online Projects page， which you can browse or search for projects based on stage， region， industry o．r capture， transport and storage type．For the first time the Institute"s website contains project descriptions for around 40 lesser scale "remarkable" CCS projects， of which four Japanese "remarkable" CCS projects were the key focus of a chapter in the Global Status of CCS report．For ongoing expert information visit our Insights page， which is regularly updated with articles from experts in carbon capture and storage， public engagement， legal issues and policy developments．

I．To join in the discussion you can attend meetings and workshops around the world， and participate in online seminars where you will have the opportunity to listen to and ask questions of a range of experts．Visit our Events page to see upcoming meetings， conferences， workshops and seminars．Finally， for a range of up-to-date news and more detailed information， visit our news and publications sections．We look forward to covering this exciting period in the development of CCS and providing you with the latest information and important issues for the sector．

Carbon dioxide has been stored in geological formations for different purposes； however， its long term storage is comparatively new．查看材料

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第6题

What is the BEST conductor of electricity？A.Carbon dioxideB.Distilled waterC.Fresh waterD.

What is the BEST conductor of electricity？

A.Carbon dioxide

B.Distilled water

C.Fresh water

D.Salt water

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第7题

Combining carbon and super-capacitors () a perfect marriage.