The world is currently very developed, which means that technology is very evolving, especially smartphone. And it brings a lot of benefits, I of course agree. Because it's so useful. Smartphone works remotely, even when you're in another part of the world. You can communicate verbally, video, audio and exchange other media. All websites, applications and software have been created to help users socialize. Social media, texting, texting, laptops, tablets, and cell phones mean no one needs to feel isolated in the digital world. Users can be regularly updated with news about local events and social developments. We can also learn through technology. Anyone with access to the internet today can access a huge amount of the world's knowledge through the web. Alternatively, lessons and courses can now be offered virtually online. Online social media or playing computer and mobile games is becoming more and more popular. Traditional media also developed, as television and broadcasting were digitized along with radio. It has many benefits, but it also has harmful effects. Nowadays, there are a lot of young people who are interacting too much with internet devices, and can easily watch bad programs, programs like those are not good for them. However, Smartphone is also a lot of benefits, is an important part of our life

1. Bảo quản vắc xin

Đây là một yếu tố đặt lên hàng đầu bởi vắc xin luôn đòi hỏi phải bảo quản ở một điều kiện nghiêm ngặt, đặc biệt là các loại vắc xin nhược độc. Mỗi loại vắc xin đều có một khoảng nhiệt độ bảo quản thích hợp, đối với các loại vắc xin virus ở nhiệt độ từ 2 – 8°C, các loại vắc xin vi khuẩn từ 5 – 150C. Nếu nhiệt độ bảo quản vắc-xin nằm ngoài khoảng nhiệt độ bảo quản, hoặc để vắc xin bảo quản ở ngăn đá sẽ làm mất tác dụng của vắc xin.

Ngoài ra, bà con cũng cần chú ý việc bảo quản vắc xin khi vận chuyển, nếu ở xa nơi bán vắc xin thì khi đi mua nhất thiết có hộp xốp, phích đá để bảo quản; nếu mua gần thì bảo quản bằng túi nilông tối màu có giấy bọc. Khi vận chuyển vắc xin cần bao gói kỹ, tránh hiện tượng va đập, tránh được vắc xin tiếp xúc trực tiếp với đá lạnh, đặc biệt không cho ánh nắng trực tiếp chiếu vào vắc xin để đảm bảo chất lượng và hiệu quả phòng bệnh của vắc xin.

2. Sử dụng vắc xin

Nếu khâu bảo quản tốt song chúng ta sử dụng vắc xin không đúng kỹ thuật thì hiệu quả cũng sẽ thấp. Khi sử dụng vắc xin chúng ta cần chú ý các yếu tố sau:

- Cần đọc kỹ hướng dẫn sử dụng vắc xin trước khi dùng, nếu không rõ thì hỏi thêm ý kiến của bác sĩ thú y.

- Khi dùng phải kiểm tra lọ vắc xin bằng mắt thường xem màu sắc, độ vẩn có gì khác thường (ví dụ: không dùng vắc xin bị đổi màu, vẩn đục).

- Không được tiêm vắc xin cho động vật đang mắc bệnh, nghi mắc bệnh, động vật quá gầy yếu, quá non, con mẹ mới đẻ, động vật mới thiến chưa lành vết thương, những con mang thai ở kỳ cuối.

- Dùng vắc xin đúng liều lượng, đúng vị trí, đúng lứa tuổi.

- Xi lanh, kim tiêm phải đảm bảo tiệt trùng. Biện pháp tốt nhất là luộc sôi hoặc hấp, để nguội dụng cụ trước khi sử dụng (chú ý không nên dùng cồn để sát trùng dụng cụ).

- Pha vắc xin đúng chỉ dẫn, trước khi sử dụng phải lắc kỹ lọ vắc xin.

- Vắc xin pha xong dùng ngay, không để quá 2-3 giờ sau khi pha, không cầm lâu trong tay; nếu thừa phải hủy, không được dùng cho ngày hôm sau; không vứt bừa bãi chai lọ, kim tiêm.

- Sau khi tiêm vắc xin, cần theo dõi vật nuôi để kịp thời phát hiện các trường hợp gia súc, gia cầm phản ứng sau khi tiêm để có biện pháp can thiệp.

3. Một số bệnh cần chú ý tiêm phòng cho vật nuôi

- Đối với trâu bò: tiêm phòng bệnh tụ huyết trùng, lở mồm long móng.

- Đối với lợn: cần được tiêm phòng đầy đủ 04 bệnh đỏ (tụ huyết trùng, phó thương hàn, đóng dấu lợn, dịch tả lợn), lở mồm long móng.

- Đối với đàn gà: tiêm vắc xin Newcastle, Gumboro, Cúm gia cầm.

- Đối với đàn thủy cầm: tiêm Cúm gia cầm, Dịch tả vịt.

Current students all have a phone. It is very useful in many ways such as: watching movies, contacting families when necessary, reading newspapers online without spending money, playing games or even talking, texting with friends when free time, shooting Beautiful photos to make memories with friends or family. But everything has two sides: the good and the bad. The phone also has a bad side. It makes us neglect studying, not hanging out with friends and sometimes even phone calls that make us not pay attention to listening to lectures, not concentrating, learning slipping. And the worst thing is that it makes us addicted. Always hold the phone with you when you eat, when you go to bed when you go to bed, when you go out and when you go to the toilet. If we use them, we have to balance learning, playing with friends, family, doing chores with the phone properly.

Internet – one of the greatest innovations of our times – has become a familiar term in our daily life. Besides its undeniable positive influences, it is necessary to acknowledge the disadvantages it brings. The most predominant drawback that people need to consider is security issues. As the Internet is widely used in different aspects of life such as business or education, users’ privacy can run a risk of invasion by hackers, causing their personal information to be leaked. Furthermore, in the virtual world where people are connected with each other and access is unlimited, it is a good opportunity for scammers and cyber criminals to approach their “preys”. Another bad side of this tool is the spread of false or inappropriate information. Every day or even every hour, a number of information is freely uploaded and shared without any restrictions.As a result, many people exploit this to distribute fake news for their own advantage, which can have a negative impact on a large scale. Moreover, the availability of entertainment on the Internet also makes unhealthy materials more accessible than ever, leading to a rise in behavioral problems, especially juvenile delinquency. Last but not least, Internet can be seen as additive. Nowadays, people are likely to spend hours surfing the web, it can be at class, it can be at work or at lunch, anywhere and at any time. Sometimes it may become a distraction, causing them to work ineffectively. Watching your favorite film or finishing work – that’s definitely a hard question. Besides, some people are so addicted that they live in the virtual world more than in the real world. They tend to express their feelings and opinions freely on social network while being rather reserved in the outside world and lacking interaction with others around. To put it briefly, much as the Internet offers a wide range of benefits in different fields, it has the cost that needs careful consideration.

Refer:

Modern society is constantly developing, and the appearance of the Internet has opened up a whole new era of access and sharing of information. This brings a tremendous reform and benefits to all humanity. In our lives there are innumerable questions that need to be answered, and the Internet was born as a useful tool to help us solve those questions. Searching for information in the past has cost humanity a lot of time and effort, and not everyone had patience to turn the pages one by one to find the information they needed. However, our lives have changed tremendously since the arrival of the Internet, and the search of general information on the Internet has not consumed us much more than mouse clicks and keyboard typing. This is where most basic and specialist information is gathered from the majority of occupations and fields in our life. There are countless websites that contain useful information for research and study, and Wikipedia is now considered to be the most complete and accurate encyclopedia. Searching the Internet is simple, but we should also be careful in getting that information. Not all knowledge on the Internet is accurate and complete, so we need to compare information from many different sources before actually using any of them for our purposes. The Internet is an infinite ocean of knowledge, and we can learn countless things if we know how to use it properly.

Advantages of renewable energy
The first advantage of renewable energy is that it can be renewable, has an extremely large reserve, can be endless. Forms of energy such as solar, wind, geothermal, ocean waves, rain... are available and free to use, without fuel costs. Biomass energy also has large reserves and low fuel costs. Compared to traditional energy sources such as coal, oil, natural gas, which are increasingly depleted, only meeting human energy needs for about 50-70 years, this advantage is a strength. outstanding.

The second advantage of renewable energy is that it is abundant and can be widely exploited in all different areas of the earth. For example, with solar energy, people can exploit it anywhere, as long as there is sunlight, it can be used to generate heat to make hot water, heating, and generating electricity through the system. Solar power with solar panels… Or with wind energy, this energy source has been used for hundreds of years to move sailing boats, hot air balloons, windmills for irrigation systems. … or the current trend is to produce electricity from wind in many countries around the world.

Despite many great advantages, renewable energy also has some disadvantages, such as:

Due to the influence of nature, renewable energy is less stable than traditional energy sources. Solar energy can only be exploited during the day on sunny days, and at night or on cloudy and rainy days, the system will not work. Or with wind energy, wind turbines can only generate electricity at times when the wind speed is in the range of 4-25 m/s. Wind speed must be at least 4 m/s for the wind turbines to start running smoothly and generate electricity, but if it exceeds 25 m/s, the turbines will stop working to avoid damage in windy conditions. strong.

Requires advanced technology and high cost is also a drawback of renewable energy. To take advantage of renewable energy sources to generate electricity, it requires advanced technology and relatively high investment costs. Currently, the cost of electricity generation from renewable energy is generally higher than the cost from fossil energy. However, the development of renewable energy in the global trend has helped to reduce costs and increase efficiency, gradually improving this shortcoming.

Television is a breakthrough invention of human, however, it has both advantages and drawbacks. First, take a look at its benefits. TV is a huge source of information with a wide variety news and instruction channels. You now can learn through TV and update news about what is happening in the world. Television also provides a huge knowledge of many fields including natural science, social science,… Besides, Television is a common type of entertainment thanks to a wide range of music TV programs, cartoons, reality shows or funny programs. On the other hand, television has some outstanding disadvantages. In fact, many people become addicted to Television and turn it on all day. Especially to children, they don’t want to go out to play with friends or focus on study. They just sk their eyes to the screen without wanting to leave. Some programs even contain violent and criminal content, which influence negatively on children. Also, spending hours watching TV is harmful to your eyesight and wasting your time. With that amount of time, you can do something more beneficial such as playing sports, doing physical exercises or learning new skills. In summary, nowadays, television is indispensable and its benefits outweigh its drawbacks.

Dịch

Ti vi là một phát minh đột phá của con người, tuy nhiên, nó có cả lợi thế và hạn chế. Trước tiên, hãy nhìn vào các lợi ích của nó. TV là một nguồn thông tin khổng lồ với nhiều kênh tin tức và kênh hướng dẫn. Bây giờ bạn có thể học qua TV và cập nhật tin tức về những gì đang xảy ra trên thế giới. TV cũng cung cấp nhiều kiến ​​thức về nhiều lĩnh vực như khoa học tự nhiên, khoa học xã hội, ... Bên cạnh đó, truyền hình là một loại hình giải trí phổ biến nhờ vào một loạt các chương trình truyền hình âm nhạc, phim hoạt hình, chương trình thực tế hay các chương trình hài hước. Mặt khác, truyền hình có một số bất lợi lớn. Trên thực tế, nhiều người trở nên nghiện tivi và bật nó cả ngày. Đặc biệt đối với trẻ em, chúng không muốn đi chơi với bạn bè hoặc tập trung vào việc học tập. Chúng chỉ dán mắt vào màn hình mà không muốn rời đi. Một số chương trình thậm chí còn chứa nội dung bạo lực và tội phạm, ảnh hưởng tiêu cực đến trẻ em. Đồng thời, dùng hàng giờ để xem TV có hại cho thị lực của bạn và lãng phí thời gian của bạn. Với khoảng thời gian đó, bạn có thể làm điều gì đó có lợi hơn như chơi thể thao, tập thể dục hoặc học các kỹ năng mới. Tóm lại, ngày nay, TV là không thể thiếu và lợi ích của nó lớn hơn những hạn chế của nó.

For a long time, television has been regarded as a saving means of entertainment and acquiring useful knowledge. However, besides the benefits mentioned above, it also brings a lot of harm because of the following reasons. First, watching TV takes up a lot of our time. I do not deny the benefits such as entertainment or education that it brings. However, instead of spending all the day just watching TV, we can do some useful works such as doing homework, helping mother to do housework. Through that, we can gather for ourselves a lot of soft skills and become closer to the other. Second, sitting too close to the TV screen will make harm affect on our health. Studies have shown that sitting near television will shorten our vision, in addition increase the risk of cardiovascular diseases and degeneration of the neck vertebrae ... These are the disadvantages that no one expects. Therefore, let's limit the amount of time spending watching TV and save that time doing other useful things.

Loi ich:

Television is very important for our lives so most families have televisions. It provides us with information and entertainment.
What would you do after a hard day at school or at work and you want to entertaining. It simple, just turn on your TV. Music channel, comedy channel or cartoon channel... is your choice, just pick a channel. And not only entertaining, TV can also help you update the news from all over the world in the end of the day
We stay at home and know what is happens all over the world. You can watch you favourite  programs and game shows you . Someone spends 3 or 4 hours sitting in front of television.
There are too much advertisements on television which makes us tired. Anyway, TV is a wonderful invention. It is a cheapest kind of entertainment for everybody.

Tac hai:

For a long time, television has been regarded as a saving means of entertainment and acquiring useful knowledge. However, besides the benefits mentioned above, it also brings a lot of harm because of the following reasons. First, watching TV takes up a lot of our time. I do not deny the benefits such as entertainment or education that it brings. However, instead of spending all the day just watching TV, we can do some useful works such as doing homework, helping mother to do housework. Through that, we can gather for ourselves a lot of soft skills and become closer to the other. Second, sitting too close to the TV screen will make harm affect on our health. Studies have shown that sitting near television will shorten our vision, in addition increase the risk of cardiovascular diseases and degeneration of the neck vertebrae ... These are the disadvantages that no one expects. Therefore, let's limit the amount of time spending watching TV and save that time doing other useful things.

Cảm ơn các bạn nhé! Mình bảo đừng coppy mạng cơ mà các bạn làm bài về tác hại vẫn giống nhau đấy!

Cho bạn nào có câu hỏi giống mình mà vẫn chưa tìm được câu trả lời. Solar energy brings us both benefits and drawbacks. One of the biggest advantages is that it is a renewable energy source. Energy can be produced as the sun lasts forever. Therefore, solar energy can really be called as a long- term energy source. Furthermore, that is a non- energy source of pollutants such as zero carbon dioxide or other gases in electricity generation. Beside those benefits, solar energy also has some drawbacks. The initial installation cost of solar cells is quite high, so not all people can use it. Also, it can not effectively work in cold weather due to the scarcity of sunlight. In conclusion, we can't deny the advantages of solar energy, but it still exists some disadvantages.