You can refer this one:

Recycle/Reuse Your Books. ...
Ditch the Paper. ...
Buy a Water Bottle. ...
Turn Off Your Phone. ...
Recycle. ...
Avoid Public Transport When Possible. ...
Save Water. ...
Save Electricity.

We should grow a lot of tree

-Dịch :

Môi trường là một phần thiết yếu trong cuộc sống của chúng ta. Một môi trường sạch rất cần thiết cho một cuộc sống yên bình và khỏe mạnh. Môi trường là khu vực tự nhiên xung quanh giúp con người, động vật và những sinh vật sống khác lớn lên và phát triển một cách tự nhiên. Nhưng hiện nay, môi trường của chúng ta đang bị rối loạn bằng nhiều cách khác nhau. Bất cứ hình thức làm rối loạn sự cân bằng tự nhiên nào cũng đều ảnh hưởng đến toàn bộ môi trường. Điều này không chỉ phá hủy cuộc sống của con người mà còn ảnh hường đến tất cả mọi sinh vật sống. Chúng ta có thể bảo vệ môi trường của chúng ta bằng các hành động nhỏ của mọi người trên Trái Đất. Chúng ta nên giàm lượng rác thải, chỉ bỏ rác đúng nơi quy định… và nhiều cách đơn giản khác. Bảo vệ môi trường cho sự sinh tồn của nhân loại là điều rất quan trọng. Khi chúng ta bảo vệ môi trường, chúng ta đang bảo vệ chính bản thân mình và cả tương lai của chúng ta nữa.

As you can see, nowadays, there are many problems of enviromental pollution such as: air pollution, water pollution, soil pollution, noise pollution and deforestatin. But I think the most serious is rubbish.

Rubbish is not good for our health and the enviroment. We should reduce them in the activities daily.

Fistly, we should reuse things such as: bottles of milk, juice, mineral water,.. to fill up the water or recycle them. If we don't fit up the cothes, we can give them for our younger sister, younger brother or give them to the people in need.

Secondly, we can recycle cans to make school think. We also can recycle paper boards to make useful think.

Thirdly, we may open a book festival. So we can swap old books ,stories, magazines, newspapers with each others.

Finally, we should use reusable things like: paper bags, reusable bags. So we don't need to use plastic bags.

For that we can help the enviroment. I think with some little actions, people can do it to have a better life.

3. Reuse plastic bags and bottles.

(Tái sử dụng túi nhựa và chai nhựa.)

4. Don’t throw away old books.

(Đừng vứt đi sách cũ.)

5. Recycle glass bottles.

(Tái chế chai thủy tinh.)

6. Reuse old clothes.
(Tái sử dụng quần áo cũ.)

7. Recycle used cans.

(Tái chế các lon thiếc đã qua sử dụng.)

8. Don’t throw old tires.

(Đừng vứt đi lốp xe cũ.)

- Có cái dàn ý nìa ✳

Save Environment

Introduction: Our natural environment and surrounding provides us with everything that we ever need. We get air, water, food, and everything else from the environment.

The term “Saving the environment” refers to the practice involved in saving and protecting the environment ensuring its sustainability.

Why should we save environment?

1. Global warming is a serious environmental issue. The continuous emission of carbon dioxide by thermal power generating units is the leading cause for the surge in greenhouse gases.

2. Natural resources are limited. If the natural resources such as oil, coal, etc. are used, one day the world may fall short of these resources.

3. High-level of environmental pollution is detrimental for human and animal health.

4. Forests are fast depleting. It may cause soil erosion and drought situation.

5. Excessive use of pesticides and contamination of soil have negatively affected soil output. These fruits and vegetables are not very healthy for human health.

How to save environment?

1. We should save drinking water. Water is a precious component of our environment. It should never be wasted.

2. We should never pollute water. Efforts should be made in making significant reduction in both domestic and industrial disposal in water bodies.

3. As far as practicable, the waste products should be recycled to make new items. The domestic and industrial garbage should be segregated as recyclable and non-recyclable before being dumped.

4. There should be a zero tolerance policy towards deforestation. Each one of us can contribute towards saving the environment by planting just one tree every-month.

5. We can make donations to NGOs that are engaged in planting trees, or in any-way working towards saving the environment.

6. Safer environmental friendly car and vehicles should be used. For short distances, people should be encouraged to use bicycle in place of motor based vehicles.

7. The use of environment unfriendly materials such as plastic should be discouraged.

8. Instead of dumping domestic garbage in the pond, lake or river, these should

9. A lot of environmental problems would disappear if we stop using petroleum, coal and natural gas as raw-materials for power generation. The focus should entirely shift on renewable sources of energy. The use of renewable sources of energy (example solar energy) would help saving the environment from global warming.

ta có Cu ko tác dụng được vs H2SO4 

-> 2,24 lít khí H2 đc tạo ra là do phản ứng HH của Fe va H2SO4 

\(PTHH:\) \(Fe+H_2SO_4->FeSO_4+H2\)

n H2 = 2,24 :22,4=0,1 mol 

n H2 = n Fe =0,1 mol 

m Fe = 0,1.56=5,6 g 

m Cu = 10-5,6=4,4 g 

vậy giá trị của x là 4,4 g

26 

PTHH : \(Zn+2HCl->ZnCl_2+H_2\)

n Zn = 6,5:65=0,1 mol

n ZnCl2 = n Zn =0,1 mol

m ZnCl2 = 0,1.(65+35,5.2)=13,6 g

teach - will know
travel - won't have
fine - won't dump

1, teach - will know

2, travel - won't have

3, fine - won't dump

Since several environmental problems have been caused by humans’ forces, we need to act responsibly to reduce the damage that we are doing to the Earth. This essay will explain environmental problems and what governments and individuals can do to address these problems.

Two of the threats to the environment are air pollution and waste. Global warming, which is well-known as a global issue because of its devastating effect on the environment, is a result of gas emissions from factories and exhaust fumes from vehicles. In addition, the increase in human population comes along with a huge quantity of waste, which contaminates the earth and pollutes rivers and oceans.

On one hand, governments could reduce air pollution in many ways. First, they could introduce laws to put a limit on factories’ gas emissions or force companies to use renewable energy in production. Second, they could also innovate the public transport system to become more convenient and greener. In this way, governments can encourage people to take public transport instead of driving, therefore reducing emissions.

On the other hand, individuals should also be responsible to lower down pollution levels in their surroundings. They can take buses and subways or other means of public transportation rather than driving, which could reduce the number of exhaust fumes from vehicles. Also, people should purchase reusable products and recycle as much as possible to avoid releasing too much waste. For example, Vietnamese people are recommended to use reusable or paper bags when going shopping instead of plastic bags to cut down on plastic bags consumption.
In conclusion, both national governments and individuals must understand the harmful impact they have on the environment and be responsible to ease the damage.