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Mia
I think  the  option  is will be the is very good to choose to compare  the other two .

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Have a look at your work and assess against this criteria - give 1 star  for basic, 2 for clear and 3 for detailed. Then make a comment about what you need to improve it
Basic

•You have made a decision on the method you will use

•Basic undeveloped points given

Clear

•You give two explained reasons for your choice e.g. This option will mean homes are not flooded….     meaning….

Detailed

•You give an explained reason for not choosing the other two options

•You give an explained disadvantage of your option

•You can give an explained advantage of one of the rejected options

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I think that option one will be the best one to choose compare to the other two.
It is the only one in those three that really fix the flood problem although it will cause a lot. but if the government really want to fix this problem choosing the other two plan what help a lot.
using dam will be the one that decrease the damage and stop the flood the best.also dam can make sure the flood won't happen again after many years later but the other two can't. The other two can't even totally stop one of the flood.

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I believe whole hearty that the best way of reacting to this flood is clearly option 3, is improving monitoring and warning system. Yes it might sound a little bit unreliable, but it you consider it in different way, you might find out that it is the best way averagely. This option would ensure people to move their belongings to a safer area. First, the cost. The cost of the construction is going to affect the government's economy and is very important. For building dams, it costs an arm and a leg, which is not really ideal. However if you choose afforestation, which comparing to dams is extremely cheap, they are not as reliable as the Dams. There's a high possibility for the trees to be crashed by the flood. But on the other hand, improving monitoring and warning system is not only cheap, but also reduces flood risk a lot more than afforestation, which costs not as much as the dams.
Yes of course if we focus on the second point, reliability, dams would be the most ideal option. But it really cost too much, and the governments might not be able to afford.
The third point, is the effected area. For the  dams, it will definitely affect less, but as well as improving monitoring and warning system, which let the people around the flooding area move away after. That is a better way, since it is clear that the flood would happen again, so moving away can insure that all people are safe and no business were affected. The likelihood of flooding again is quite high, so they should not only think about how to protect the country, but also, consider about the money after each destruction, so if we chose to build dams, yes it might last longer but once the damage was cause, the money to reconstruct is going to cost an arm and a leg. So if we choose to improve monitoring and warning system, it will be much better and the country's economy wouldn't be effected much.

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The new version of the  answer from CiciZhong.

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The new version of the  answer from CiciZhong.

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Sorry that I can't change the text on the old one,so I  can only make a  new one.

Compare to the other two method I think the government should take method 1.

Using dam to stop the flood to damage the others will be the only one that can totally stop the flood in all three of method.Like planting tree,it may have some little effect and might be good for the enviornment but it can’t really totally fix the flood problem,so there is really no point of take effort to do something that can’t even fix the problem.It waste time and money but the problem still didn't get fix.

Also the improving warning systems method,it cheep but I don’t think that it can make sure all of the creature away from the flooding area and also maybe all of the human leave,the real estate can’t.The factory near will still get damage,the houses that people live will get flush by the flood becoming a big mess for the government to clear.

Instead of let people move away or plant tree that cannot really stop the flood,I think build a dam will be the smartest way to fix this problem,it the one that decrease the damage of flood the most.

If the government really want to stop the flood choosing the other to won’t really help much,although that the dam might be way more expensive compare to the money that the other two method might spend,it make take billion to build one.But it can make sure the flood won’t come back again.The money that the government fix the damage made by the flood and the method it use to stop the flood each year might be nearly already bigger then the number of money to build a dam,so why don’t the government just take the money that will use later to stop the flood now and get a dam to totally get ride of the flood.

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I think dam and reservoir is the best option,  because it controls the water flow and prevent the flood.
Dams can control the water and prevent floods.
It cause huge but compared to the loss in the flood, it's better than section 3.
Once the government build a dam, it can prevents more than one floods, so the loss in the lower will decrease, and the flood will never happen again, this is what the governments want.

So, building the dam and reservoir is the best option, it can protect the land from flood.

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Dams and reservoirs are the best option comparing to the others, even though it costs more money than the others,.
Dams are the safest and the most effective way to control the  flood, it might have cause some harm to the environment nearby but it can prevent the strong current washing away the trees and human buildings,  and farm lands, and building dams and reserviors can make sure there won't be flooding ever again.
Dams and reservoirs  are impossible to destroy unless you set bombs on it, but why would anyone do that? So once you built it, you don't need to worry about floods again. Building dams and reservoirs can also save the water and contain it, so the government can use it whenever he wants, irrigate farm land, to produce fresh drinkable water.......
So building dams and reservoirs might costs lots of money, but the benefit of buliding them will be huge.

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Dams.
Flooding has rampaged inhabitants' placid lifestyle by destroying human properties and such…not only disconnects people from a feel of sureness, it might also lead to social disequilibrium by causing depression by demolishing (e.g. economic) stability of people. under this situation, the only way to end this dithering is to stop floods. then, on my grounds, I could delicately yet also staunchly affirm the construction of dams and reservoirs. for those engaged in discussing the costs of different projects, I could only say that reservoirs and dams are the most secure way to annihilate the risks of floods (at least to the maximum extent). Dams offers a most reliable option for ending the disturbance of floods. it might cost for billions,  as said in the instructions, but it is indubitably the finest choice in 'anti-floods'.
Moreover, dams would also prevent any other disasters (e.g. draughts, since the reservoir could provide water for irrigation of farmlands. )
another huge advantage it nurtures is moderate irrigation. The prevention of floods could confine the risk of over-irrigation, which will also generate more profit than the cost of dams. people might argue that it harms the environment. I confess that it is indeed true, however, we believe human safety and security far outweighs a little damage in environment. even so, we could also afforest trees and vegetations in other places where lands are unoccupied.
despite all these slight defects, dams and reservoirs are undoubtedly the best choice in this scenario, since  it had two strong benefits that is unique of the rest two solvency. Firstly, it maximizes citizens' safety to the utmost extent; second, it had multiple uses for different disasters. I do not want to contort my affirmation, but on some grounds, virtual and cheap monitor systems and precautions, it simply does not have big impact to real-life predicaments. Dams are, I admit, not only environmental-friendly but also expensive. but we would use money exchange for safety, if that is the most feasible way, right?
To sum up, perhaps the throng will disagree due to its great expends of building it, but let me clarify this misunderstanding one last time : for preservation of human safety, we must use the most credible solvency, for not only for current affairs, but also future considerations for our progeny and posterity. To make a good precaution, we must be prepared to sacrifice little costs that brings more profit in future. Thank you.

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Dams and reservoir is the best way to stop the flood. Though it took a lot of money, there will be not flood and they can earn the money back again at some figure date. If they don't stop the flood, their money will keep loosing.

The reason i choose dams and reservoir is actually because that it is not likely to be destroyed. If you throw a rock at it, it won't cause any effect on the dams and reservoir.

First, planting trees. Planting trees might also be a good way to stop floods. Also it can produce oxygen and make the environment better.Though planting trees won't pollute the environment and won't take a lot of money, it take a lot of time and it would only reduce 10% of the risk of flooding.
Planting trees might also be a good way to stop floods. Also it can produce oxygen and make the environment better.

Second, afforestation. Though  afforestation cost extremely cheap comparing with dams and reservoir, it actually didn't have any use. Just look at it and sometimes some hardworking people might plant some trees and so when the flood comes they just ran to high places watching the flood. And if there is a rock in the flood and the rock will damage it.

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I choose the first one, Dams and Reservoir because compare to the other it stop the flood.
First of all people think that planting trees are more cheaper than building dams and reservoir. It's cheap but it only stop 10% of the flood so it means that literally controls nothing for a flood. But people says that building Dams and reservoir cost a lot of money, yes, but you will not have flood again.
Next people think that building dams and reservoir are bad for many animal habitat. But we build dams and reservoir are saving people's lives. In northeast state of Queensland have been flooded about 200,000 people and its lots of people. If they still didn't build dams and reservoir the population will decrease and less people will take care the environment. So we need to build dams and reservoir to stop again that around 200,000 people dying.
Inclusive, my opinion is building dams and reservoir are the best. It is expensive but it saves people lives.

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I choose build a new, huge dam and reservoir in the upper course of the Brisbane river, even though it cost a lot of money and need a lot of land, it will destroy some of the villages and animal habitat to build the dam and reservoir. But it will be better than flooding every time and destroy than middle, lower course villages, animal habitat and the farmland.
In afforestation across the Brisbane river drainage basin, It's cheap but it only stop 10% of the flood, there is 90% that the flood will come. even though they plant trees, the people who is living in Brisbane river will be scared that some days the flood will come, but if there is Dam and reservoir is strong, so it will not easily be destroyed, the citizens will be not scared of the flood and they will continue there ordinary life.
So I think building dams and reservoir will be the best choice.

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I think option 3, will be a good plan to keep the civilians save， because……
1. that will keep most then citizens save.
2.and

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In my opinion, I think that warning systems will be the best option because...
1. It does not damage the environment nearby and force the native people to move to a different part of Australia like the dam.
2. It won't fall apart from age like a dam or afforesttion, as those two will eventually fail at one point or another and cause one single major flood or fail at intercepting the extra rainfall, causing too much surface runoff. Therefore destroying its purpose.
3. The warning system will at least allow people to prepare themselves and that means that the government will be able to send preparations to decrease the flood risk and save millions of dollars of destruction and hand out things to every home to prevent their property from getting washed away. An example of the things I mean? Sandbags like the ones people use in Chengdu to prevent too much water to get through and to weaken the force of the flood.
4. There will be time to move people to the safety of higher ground and to prepare rations of clothing, food, and essentials in case if the flood was heavily underestimated and destroyed all the possible sources of food and fresh water.
5. Warning systems are not as expensive as dams or afforestation. So that means there will still be extra money left over for the government to use on rebuilding the place if it is damaged.

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submerge Comparing all the benefits and the weaknesses of the solutions, I chose option 1, to build a dam and reservoir in the upper course of the river.

First of all, dams are the most secure and usefull hard engineering for controling the flow of water, which controls the flooding. You're basicly not only blocking the flow from the source of the river, but also avoiding flooding directly, and it could stay there for a long time. Dams are used for thousand of years, and it was still usefull today. It would not be flushed away by another flood because it is built in the upper course, where the flow has a low velocity. However, its costs are huge and since the Brisbane flood just submerge the city, the government can hardly pay. The other disadvantages are that building the dam needs much labour power and even some small villages and farmland needs to be removed. With all that being said, it is still the best value, since there will be no futher circumstances. For instance, it could avoid further loses of resourses(properties), farmlands and lives of people, but also loosing some part of the resources existing now. It won't let any flow of water pass the town, and evacuation will not be nessesary.

Afforestation costs low, but even if the trees can grow safely and not withered, it would only reduce the flow by 10%, which literally controls nothing when a flood approached. If you say trees provides oxygen, no one's going to breathe at the upper course of a river. Moreover, the main source of oxygen is not trees but planktons.

Warning systems are better since it has a chance to kept people safe and costs low, but not all the properties of the town can be ensured to be safe. This leads to evacuation of the whole town, which will be a mess and wasting time. These two options would still let the flood be a harm to the town, and as a result, I chose the first option.

I will assess my padlet as a detailed explaination. I gave explained reasons for not choosing the other two options, detailed explaination for a disadvantage  for the chosen option and one explained advantage for one of the rejected option. I will give my work 3 out of 3.

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Well,I would suggest that the government in Queensland will use opinion  1 Dams and reservoir hard engineering  the following reasons is

1.Dams will prevent  loss of life and properties causes by the flooding.So when there is a huge rainfall the dams and the reservoir can keep a big amounts  of water for other uses and also can stop flooding caused by the rainfall.

2.The second reason is that Dams can reduce the flooding risk significantly.Dams are the most safe way to stop the flood

3.Well many people will say that building dams will damage environment and will use a lot of lands most important of all  the costs of the dams and the reservoir ,but  the safety of the citizens are way more important the the money and the uses of lands.So if a flood happens the proprieties will lost so big repair will be needed cost a lot .Business stopped so people will have no income and the government will need to give out subsidies to the people who lost their homes and jobs.So the money for building the dams are worthy.

Well I will give my work 2 out of 3 because I did not give a reason for not choosing the other options.I give the reasons why I choose this option so I would score this 2 out of 3.

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In my opinion ，I think dam。
because it is the best way to stop the flood .also the the flow of water can be effectively controlled .It will not having flood again .
Although it may cause some damage to nature, but it prevents the current from washing away the tree.

like afforestation  ,Although water and soil erosion can be prevented, but it cannot stop the flow of water from washing the forest.So it is not suitable for places where there are frequent floods, it can only serve as a flood control.

The warning system are not as expensive as the dam or afforestation, but If the flood comes again in the future without any protection, a lot of things will be destroyed and the government will spend a lot of money and a lot of man to rebuild,but on the whole, compared to the government spending a lot of money on rebuilding, the dam are expensive but they're worth it because the floods won't happen again.

so in general  the Dam can be the most effective flood control.
the warning system I do not like If you set up this sign and tell you that it is dangerous, it will not play a protective role. On the contrary, it may cause damage.

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I strongly, firmly and vehemently believe that improving monitoring and warning systems is the best option in this situation.  First of all when people build a dam or plants trees it doesn't cover a hundred percent. Building a dam and planting trees basically means that they dont want the flood but why? Because it causes destruction. But, by improving the warning systems and monitoring system then the flood wouldn't cause destruction because the people knows what will happen, they're prepared. Improving the warning systems would also be cheap and not wasting a lot of time. All they need to do is make more warning signs and improve the alarm system. Though this does not reduce the risk of flooding but the people would be prepared and ready so basically the flood will fo no harm. usually the alarm will come 2 or 3 days before the flood so that should be enough time for the people to get to somewhere safe. Now that I've talked about the best option to my opinion lets talk about the other options.

Personally I wholeheartedly believe that building a dam would be the second best option. Although building a dam and reservoir would cost a massive amount of money and time it will reduce the risk of flooding by nighty percent and thats more than enough. It would be worth-it to spend money. It will reduce the damage and to the "villages" and environment such as cities. Now our technology is improving at a mind blowing speed and about two years later it will be a piece of cake. in conclusion i strongly, wholeheartedly believe that improving warning systems and monitoring systems will be the best option and building a dam and reservoir will be the second best option. Both of those option will protect the environment and society and that is the two options that I believed will help out the most.

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Afforestation in my opinion is the best method to reduce flood risks.

First of all, the method of planting trees is quite cheap and shouldn’t take too much sweat, blood and bone to create. Simply plant a sapling into the ground and water it and in a matter of days, you will have the formation and the beginning of a tree!

This method will reduce flood risk by 10 percent which should be enough time to get out of the surrounding areas.

Even though this method doesn’t create a much better chance of survival; the trees will also benefit the air in which humans breath. And last time I checked, oxygen is more important than flood risk management.

Now that I’ve given you a bunch of reason why this option is the best, I think it is time to compare and contrast with the other options.

Dams and reservoirs are by far the most useful in terms of reducing flood risks. But think of the costs, time conservation and sweat, blood and bones used to make this option a reality. Furthermore, you don’t even know if the construction will be in time for another flood to come rolling into town. And it would be terrible to create a structure as large as a dam and be half way done only for it just to be swept away by another flood.

Warning systems were my second choice of best option to reduce flood risks but I had to go with afforestation because warning systems will simply provide a warning for you to get out of the area. There probably will be the same amount of havoc and destruction wreaked upon your community, houses and public facilities.

Now hopefully you will now know why I chose afforestation above all others. It’s cheap, non time-consuming, will reduce flood risks And also should provide a bit of a warning when you hear the water purging into the trees.

I would rate my writing three out of three because I put a lot of thought into it and turned my thoughts into words and my words into action. I used the detail and sentence structure in order to turn this piece of writing into a essay of some sort. I stated my reasons clearly and gave an obvious choice of action to reduce flood risks.

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In my own opinion I think the best options is to choose the large dams and reservoirs. Dams is the best choose for them. I think it is the best one to keep the flood. First they are actually a poor country they don't have a lots of resource. They don't have many resources humaines. It is really hard for them to have many materials to get good prevent or control flood.

The point of choosing dams is because it is more useful for them .Because dams is not easy to broke when the dam finished building maybe it can stay for 50 years not break. They don't need to fix it often. But because they don't have many resource so it is really hard to build other kinds of prevent for the flood. The other types are very easy to broke and it needs many resource of human . This country have flood often so they didn't have time and efforts to update or fix the controlling of flood(When other controlling flood breaks on one will knew it because they are too small and when the resident didn't figure out flood is coming they couldn't get precaution . Their house will flood cars will broke farms will destroy everything lose). So this is why I choose the dams. The Dams is the easy one to build and the most secure one.

I didn't pick other ones is because, those of them need many resource and time. One example according to the warming billboard . The billboard is too small ,when the flood comes how can anyone see it or even knew there actually is  a warming billboard . Secondly it is just to easy to broke it can broke  by a 12 years old child too . some one will say it is cheap but it is not safe what is the point of putting it there?

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To ensure floods does not happen again, dams is the best choice. Although it was expensive.

Reservoirs

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The flood in Queensland has known vastly to be most active in  December 2010. The flooding is Australia's worst flood in 50 years. Twenty-two towns in the northeastern state of Queensland have been flooded and about 200,000 people have been affected. With such severe destruction, precaution such as Afforestation and simply increase the quality of monitoring would not reduce or modify the flood risk and take the damage to its lowest.Despite the cost of the dam built, what have to be admit is that this would be the most adequate protection when a flood occurs again. The cost are questioned to be huge, but if this do work effectively well at least better than both other two choices, the money would then not be really a issue as the aggregation of the supplies would be supported and advocated.The time as also questioned might take quite a while to create, but as time used can create a greater interest and ensure the happen of risk to the lowest possible in the future, as it could save and alleviate more lives , this would be a worthy sacrifice. Although agricultural lands may also be a sacrifice and a antagonistic point above this project, but that could actually take much ease to ameliorate as compared to the damage among the floods. As I have stated earlier, there will be augment of sacrifice while proceeding the task, but this would no doubt be the most effective modification to both people in Queensland and obstacles standing. Even more to the point, building dams and reservoirs , won't have merely one advantage on flood risks, but also the main source of irrigation, help in conserving soil.And are also the main source of power generation. On the other hand, warning systems and afforestation don't really settle the problem of flooding, and still having risk on damaging grounds and artifacts.Afforestation are widely known to abstain from surface run off and  prevents soil erosion , also prevents the fields from not getting  barren and infertile.However, evidence are found that planting trees(afforestation) could only reduce the height of flooding in towns by up to 20%.(resource from www.theguard.com) .From looking at the information we could see that afforestation has relatively low efficiency of actually forbearing the flood.It may, to some extent assuage it, but due to the fact that the flood in Queensland emerge every couple of month.(source from www.bom.gov.au, such as in 24th January 1863: Severe floods on the Fitzroy River.,  and right upon the same year, 20th June: Goondiwindi: had Heavy rains,roads almost navigable, river swollen, mails delayed.And other severe flood that occurred in Queensland could be found within the website),and can penetrate for miles within the city, Afforestation in this case did not present to be useful.Warning systems, may to some extent keep the significant essence of the city safe , but this did not again solve the most vital problem.As also due to the frequency we have seen in history  for the flood reoccurring.

Having considerations for all choices, the dams and reservoirs might take scarification for most, but will bring us reassurance in the future.

I would suggest that this is a detailed piece of writing.As Source for all informations are given, explaining every suggestions fully, and language being subjective also with real evidence.

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I think dams and reservoir is the best way of stopping the flood.

Although building dams and reservoirs will cost a lot of money, there will never be a flood like before.

Building a dam and reservoir will reduce the damage to environments and it would not take away people's lives.

The technologies are greater than before, and it will cost more money, so if the land is flooded, than it would cost more than building a dam and reservoir.

Overall, building a dam and reservoir is the best because it protects the land and the environment from flooding. Building a dam and reservior cost a lot, but not if the flood flooded the whole city.

I think my work is a clear description because I gave the descriptions about why my choise was the best but I didn't tell about the different ways of defending a flood.

The advantage of afforestation if that it won't cost a lot, but the trees will take a long time to grow.

The advantage of warning systems is that if people look at the sign, they will know and it doesn't cost a lot. The disadvantage of warning systems is if people don't look at the sign. The other two options, people don't need to worry about it but this option, people need to take a look at the sign.

I wrote the disadvantage of dams and reservoir at the top.

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The state government in Queensland wants to ensure that another flood event like this does not happen again. They have 3 potential options in regards to flood management.

You must pick an option for the government and write a report explaining why this option would be appropriate.