Correção de texto sobre TOEFL

Olá, é a primeira vez que posto um texto aqui, comecei a estudar para o TOELF recentemente e estou tendo dificuldades para entender bem o que eles querem do texto que você tem o listening junto. Esta escrito antes de começar o texto que você não pode dar sua opinião no texto, mas que tem que explicar como as duas opiniões (do texto e do lecture) geram dúvidas. Fiquei muito confuso sobre como explicitar a informação do texto são passar a minha opinião. Está aqui o resultado do texto, feito do primeiro exercício do KAPLAN, que fala sobre incêndios florestais, o texto cita os benefícios da queimada controlada e o listening fala alguns dos malefícios:

In United States there's an federal agency that has the responsability of controlling the growth of the forests, since if they grew a lot there's a possibilty of a wildfire happens and bring destructive consequences.
Firstly, this agencies have the purpose of develop controled wildfires, because the quantity of potencial fuel such as leaves and deadwood keeps incresing, and there's a necessary of a prescribed burning to prevent more dangerous wildfires that could possible happen. However, this process has to been really well stuctured, and done by forest professionals.
A lot of new ideas of how to control wildfires need to be considered, for example using mechanical cleaning or even goats to clean the ground of the forest, this new methods can be both more safe and economic viable.
There's an episode of a controlled fire that went wrong and left four hundred families without home, despite of all the destruction that it brought to the city.
It's evident that this question brings another ones about how safe and necessary it is to controll this potencial danger to human beings.

Eu tenho quase certeza que escrevi pouco também, existe um limite mínimo para o texto?
Se vocês souberem de vídeos na internet que auxiliem e exemplos também ficaria muito grato!
Agradeço desde já pela atenção!
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In the United States there's an federal agency that has the responsability of protection of forests, since if they grow a lot. There's a possibilty that a wildfire happens and brings destructive consequences.
Firstly, this this agency agencies have the purpose of develop(?) burning studying controlled controled fires to prevent more dangerous wildfires that could possible happen (in the future). However, this process has to be really well stuctured, and done by forest professionals.
A lot of new ideas of how to control wildfires need to be considered, for example using mechanical cleaning or even goats to graze clean the ground in the forest, this these new methods can be both more safe and economically viable (or... safe and cost effective).
There was an episode of a controled fire that went wrong and left four hundred families without home, despite, and not only that, it brought a lot of destruction to the city.
It's evident that this question brings another one, that of how safe and necessary it is to control the potencial danger to human beings.

ex
Notice:

There's – in academical papers, you should use “there is” whenever you can.

I just parsed the text in haste essentially for grammar and punctuaction, it was not examined in detail. Not about coherence, for example. So, the real improvement of it, the major adjustment will come from our fellow contributors from the Forum.
Well, I did little, but it´s already a beggining. See you around.