Chúng ta phải bảo vệ , nhìn thấy rác thì chúng ta nhặt và cho vào thùng rác .

Đáp án D

We are living in the modern world and we have to face serious problems about the environment. One of the prominent problems is air pollution. 2020 is an alarming year for heavy air pollution. Hanoi and Ho Chi Minh City- the 2 big cities, the problem of air pollution is even more clear. Industries in Vietnam are growing day by day, leading to untreated exhaust gas being discharged. This is the main cause of air pollution. In addition, the causes of air pollution can be mentioned such as traffic, military activities, agricultural activities, etc. Air pollution directly affects the health of humans and animals. As an indirect cause leading to global warming, it is a direct cause of dangerous human diseases such as respiratory tract cancer.  To sum up, human activities and natural disasters are the main causes of air pollution. We have to take measures to protect the environment properly.

Nowadays, air pollution is a common concern worldwide. It is a cause of damage to the environment and health. Some air pollution comes from natural sources like wild fires => wildfires (1 word only), volcanic eruptions, and so on. But most air pollution from humans such as industrial chemicals, dust, toxic gases which result in climate change, global warming, acid rain and can affect human health. In Vietnam, especially in big cities like Hanoi and Ho Chi Minh city, the total amount of dust is continually increasing. The sources of air pollution is => in (preposition) large urban areas are mostly traffic emissions, road building, and factories. Air pollution is a cause of high blood pressure, birth defects, lung cancer, and others. To protect the air environment we should: 

- Reduce emissions from cars by walking, cycling, or using public transport.

- Plant trees as more as we can.

- Protect natural resources.

- Keep a clean environment.

It is very important to reduce air pollution. When we protect the air environment, we are protecting ourselves and our future.

The problems with pollution in the nearly that have become so serious. I think the major cause of this phenomenon is our human activity. This is a hot topic not only in Vietnam but for all countries around the world. Because it was damage to the environment and health. Moreover, we have only one Earth to live in. So how we improve this bad environmental condition? In this essay, I will suggest some possible solutions to this issue.

First, we need to reduce the number of transports by encouraging the use of public transports. This could be managed through cooperation between governments and individuals. For illustration, governments could ensure that public transport is more affordable and convenient for the general public, then there will many people use this type of transport.

Another solution is to improve our education about environments. I want to say that both parents and schools should teach children about the meaning and importance of protecting the environment. Also, the governments should introduce laws to limit the deforestation in many countries around the world to ensure that there are enough green forests, which helps the air be cleaner. That also means we have to protect natural resources, we need to limit the overexploitation and indiscriminate exploitation of natural resources. In addition, we have to limit littering indiscriminately, which discharged into the environment every day.

Finally, let's join together to contribute to making the green environment more beautiful.

cần trồng nhiều cây xanh

không dùng nhiều chai nhựa thay vào đó ta nên dùng đồ bằng giấy

bỏ rác đúng nơi quy định 

trồng nhiều cây xanh

tổ chức các hoạt động trực nhật khu phố 

giảm bớt lượng dùng phân bón hóa học 

đi xe đạp để bảo vệ môi trường

xử lý rác bằng cách chôn, đốt....

tái chế chai nhựa làm chậu cây

học tốt 

kết bạn nha lớp 4 đó

Đáp án D

Tất cả các đáp án trên đều đúng

Đáp án D

Câu 1:D

Câu 2:B

Nhớ k cho mk nhé

câu 1:D và câu 2 :B

Mình học rồi

- Câu đúng: b, c, d, g.

- Câu sai: a, e.

Tham khảo!

* Gợi ý báo cáo thu hoạch:

- Tên môi trường: Môi trường nước.

- Các tác nhân gây ô nhiễm môi trường nước: Do nước thải sinh hoạt và nước thải từ các khu công nghiệp chưa qua xử lí thải ra môi trường; do xả rác thải rắn từ sinh hoạt và các hoạt động sản xuất vào môi trường nước;…

- Đề xuất một số biện pháp hạn chế tình trạng ô nhiễm môi trường nước: thực hiện các biện pháp xử lí nước thải phù hợp; vứt rác đúng nơi quy định; tuyên truyền và giáo dục để nâng cao hiểu biết và ý thức của mọi người trong việc bảo vệ môi trường, …