Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
1.Water Pollution is mainly caused as a result of improper discharge of household and industrial chemicals wastes into the water bodies.
These dangerous chemicals (in the form of solid, liquid or gases) mixes with water and make it unsafe for living bodies. Water pollutants cause harm to human-beings, animals, trees and other constituents of environment.
The sources, effects, and control measures of Water Pollution are discussed below.
Effect of water pollution on human health- Presence of toxic metals in water may cause skin disease, dysentery, amoebiasis, anorexia, etc.
- Radioactive substances present in water may lead to radioactive pollution causing cancer.
- In polluted water the different water borne virus, bacteria, and protozoa are present. They cause small diseases likely pox, chicken pox, dysentery, amoebiasis, tuberculosis etc.
- The toxic industrial and agricultural runoff should be properly treated before mixing with water sources.
- Drinking water should be properly treated to make it free from any germs.
- The sewage system should be much more scientific.
- The waste water should be purified before it goes to the river.
- The toxic chemicals from industries should be properly treated prior to discharge into the environment.
- Cultivation of Salvinia and Azolla in the pond or lake can fix toxic metal and hence metal pollution can be reduced.
- The domestic or household effluents should be discharged properly.
Tk:
The learning process is no longer limited to textbooks, classrooms, and libraries. Technology has greatly changed the way we get information. Students can now access more information, get it more quickly, and get it more conveniently.
An amazing amount of information is available through the internet. We can search for information related to almost any field and get information. We can search about past events and current affairs using the internet. Students can read newspapers or thesis reports published in another part of the world on their computer monitor.
When you use the internet, you don’t have to go through catalogs in the library and spend time searching for books on the bookshelves, the information comes instantly. You just have to type few words and the search engine searches entire World Wide Web databases ad shows you the related information within a few seconds. By using the internet, you can get information more rapidly than by using other media, like newspapers, for example.
It is certainly convenient to search the internet than going to a library and reading books. On the internet, you can search anything, anytime, and anywhere. Unlike books and libraries, you can surf the internet to search for specific information when you are sitting at your home, or when you are eating your breakfast, or when you are at school, or when you are traveling. The Internet allows you to discuss your ideas in “online discussion forums”, and read news and e-books, and watch video tutorials. What could be more convenient?
Technology like audio or video players, TVs, etc has greatly changed the way of learning these days. However, especially the internet has changed the quantity, the speed and the convenience of getting information.
I agree with idea advanced technology will help students greatly in studying by themselves at home. Firstly, studying at home will help us save so much money. We don’t have to buy so many books and school supplies. It will help us save time and energy too because we don’t have to spend much time on travelling to school. Secondly, you can see there is a lot of traffic on the way especially in rush hours. There are always accidents on the road. Studying at home will help us avoid dangers on the way to school and make traffic less heavy. In addition, we can search for information easily and quickly with a tablet. It’s very convenient. It helps us to save time and we can finish our projects quicker and make them more informative. In conclusion, I think advanced technology really helps us in studying and it brings us more joy in learning new knowledge.
Bài dịch
Tôi đồng ý với ý kiến rằng công nghệ phát triển sẽ giúp học sinh nhiều trong việc tự học ở nhà. Đầu tiên, việc học ở nhà sẽ giúp chúng ta tiết kiệm nhiều tiền. Chúng ta không phải mua nhiều sách và dụng cụ học tập. Điều này sẽ giúp tiết kiệm thời gian và sức lao động nữa bởi vì chúng ta không mất nhiều thời gian đến trường. Thứ hai, bạn có thể thấy có rất nhiều phương tiện giao thông trên đường đặc biệt là giờ cao điểm. Có rất nhiều các vụ tai nạn trên đường. Việc học ở nhà sẽ giúp chúng ta tránh được các tai nạn trên đường tới trường và làm giảm ùn tắc giao thông. Thêm vào đó, chúng ta có thể tìm kiếm thông tin trên mạng rất nhanh và dễ dàng với một chiếc máy tính bảng. Nó rất tiện lợi. Nó giúp chúng ta tiết kiệm thời gian và chúng ta có thể hoàn thành các dự án nhanh và khiến cho dự án của mình có nhiều thông tin hữu ích. Tóm lại tôi nghĩ rằng công nghệ phát triển thực sự giúp ích cho chúng ta trong việc học và mang lại nhiều niềm vui trong việc học hỏi những kiến thức mới.
2.In modern world, technology has played an active role in people physical lives; on the other hand, it can not touch our spiritual lives while art can. One of several reasons related to this is that art help us express our soul. Actually science is a combinations of tools, methods and machines which solve our physical problems. Meanwhile art such as colorful drawings, paintings, rock songs, romantic movies gives painters, film writers a ability to express their ideas and feelings. That is why art probably touch our soul. Other reason is a benefit of enjoying artworks to who enjoy art. It for instance listening to music and watching movie helps listeners and viewers feel relax after a hard-working day fulled of stress. While, techonology can not cause it can only solve our particular troubles, save time and cost, not a spiritual troubles. In short, both science and art play a significant role in human life, people are not able to live without one of those.
Fresh water is the most important source of life on the earth. Any living thing may survive without food for days however it is impossible to imagine life without water and oxygen. The ever increasing human population enhances the demand of more water for purposes like drinking, washing, performing industrial processes, irrigating crops, arranging swimming pools and other water-sports centres. Water pollution is done by the people of all over the world because of increasing demands and competitions of luxuries life. Waste products from many human activities are spoiling the whole water and decreasing the amount of oxygen available in the water. Such pollutants are altering the physical, chemical, thermal, and biological characteristics of the water and adversely affecting the lives inside as well as outside the water.
When we drink the polluted water, harmful chemicals and other pollutants goes inside our body and deteriorates all the body organs functioning and puts our lives in danger. Such harmful chemicals also disturb the lives of animals and plants greatly. When plants absorb dirty water through their roots, they stop growing and die. Thousands of seabirds are killing because of the oil spilling from ships and industries. High level of water pollution is done due to the chemicals coming out of the agricultural usage of fertilizers, insecticides and pesticides. The effect of water pollution varies from place to place upon the type and amount of water contamination. The degradation of drinking water needs an urgent basis prevention method which is possible by the proper understanding and support from the end of each and every person living on the earth.
1.To: msha@gmail.com
Subject: Group homework submission - Group 1 - Class 8A
Attachment: Homework_Group1. docx
Dear Mrs.Ha,
My name is ......, the leader of group 1, class 8A. I would like to submit our group homework on the topic global warming.
Attached is the file of our homework. All information of our group's members like names and student codes is included in the file.
Please let us know if you have any more requirements.
Yours sincerely,
Minh
2.I agree with idea advanced technology will help students greatly in studying by themselves at home. Firstly, studying at home will help us save so much money. We don’t have to buy so many books and school supplies. It will help us save time and energy too because we don’t have to spend much time on travelling to school. Secondly, you can see there is a lot of traffic on the way especially in rush hours. There are always accidents on the road. Studying at home will help us avoid dangers on the way to school and make traffic less heavy. In addition, we can search for information easily and quickly with a tablet. It’s very convenient. It helps us to save time and we can finish our projects quicker and make them more informative. In conclusion, I think advanced technology really helps us in studying and it brings us more joy in learning new knowledge.
3.I disagree with this statement.Modern technology is mostly seen as blessing for learners.It made learning easier .The internet can provide you with ìnformation in any field,you can easily find that online .Students who are using technology now will find it easy to complete in the future.But the availability of all types of information online ,many students are becoming lazy.Some students even do not attend classes,they think that teachers are no longer nesessary
I agree with studying online at home. Firstly, studying at home will help us save so much money. We don’t have to buy so many books and school supplies. It will help us save time and energy too because we don’t have to spend much time on travelling to school. Secondly, you can see there is a lot of traffic on the way especially in rush hours. There are always accidents on the road. Studying at home will help us avoid dangers on the way to school and make traffic less heavy. In addition, we can search for information easily and quickly with a tablet. It’s very convenient. It helps us to save time and we can finish our projects quicker and make them more informative. In conclusion, I think advanced technology really helps us in studying and it brings us more joy in learning new knowledge.
2/ ENVIRONMENT
Nowadays, our natural environment is suffering more and more the terrible human impact. At the moment, there are a lot of environmental problems, like desforestation, the destruction of the ozone layer, acid rain, the greenhouse effect, pollution in the air with traffic humes, and harmful chemicals which are released into the atmosphere, pollution in the rivers and oceans with illegal effluents, sewage spills, industrial waste, drinking water is being contamined due to river pollution…. (and so on)….
All this take parts of a terrible situation and involves awful drawbacks in our planet. The destruction of the rainforest carries many animals are wiped out, fish supplies are depleted through overfishing, pollution is very harmful for us, besides, there are methods of electricity generation (which emit greenhouse gases), and contribute to global warming.
Our governments have to improve their natural measures. It is important to support alternative source of power, like solar stations, wind power… These one should be easy to live and work with, safe, practical, cheap and clean. On top of that, they are higly productive and friendly with the planet. Besides, our goverments should have stricker laws and hard punishments for illegal hunting, encourage countries to control the number of trees are cut down, reduce gases emitted from factories (and so on)…
On the other hand, we all have to be aware about this problem, and contribute to conserve our planet, like: switch off the lights, ride a bicycle, insulate our houses, use public transport, use less petrol and electricity, save on water, recycle our rubbish ….. In this way, we all can contribute to conservate our environment and wildlife.
Our environment affects all of us. We share the same planet. We all have to be aware of the necessity of improve our natural world. The environmental organizations play an important role, but we all can do a little effort in being much more ecological.
(*Nota: El tema de “Environment” es un poco lioso. No hace falta estudiarse conceptos muy específicos ni ser un especialista en la materia. Sólo llevar las ideas claras y además que esas ideas sean muy sencillas. No hace falta entrar en mucha materia).
5/ Learning is often considered to be a normal part of working and personal life. Both learning for achieving a job as well as for achieving knowledge should not be neglected. Online environment is changing continuously and it represents a great opportunity for learning. It is very important to discover how to learn using all available communicatio
Online Learning Advantages and DisadvantagesNowadays, online learning turns out to be more and more practiced. Many traditional universities started to share their courses online for free. It represents an easy and comfortable method to achieve knowledge in almost every field, from law and accounting, to human sciences, such as psychology and sociology or history. Online learning is a great alternative to traditional universities, especially for people who can’t afford the time and money to take real courses.
Advantages of Online LearningAlthough many people still consider traditional universities as the best way to achieve knowledge and get a diploma, online learning proves to be a great alternative. Students have the chance to study in their own time and especially for free. It represents a great way to study many fields and to boost the level of self-motivation. Online learning is so effective because students can finish their homework quickly, and there is more time left for hobbies or for finding a job.
An access to all resources of a traditional course helps participants learn wherever they are, leaving them the freedom to choose the time for study. With basically an Internet connection, a person can attend different courses. Among the advantages of online learning there are the responsibility and self-discipline of students.
Disadvantages of Online Learning
Only in a small group a person can develop properly. At school, students learn how to make friends, be patient, get rid of disappointment, and especially to compete. Competition between colleagues can be very stimulating and students will only benefit from it. Online learning cannot offer human interaction.
Another disadvantage refers to the fact that online courses cannot cope with thousands of students that try to join discussions. Also, online learning can be difficult, if it is meant for disciplines that involve practice.
In conclusion, online learning should be seen as a complement and extension of classical forms of learning. Not even the best online course can fully replace the personal contact with a teacher, or the human relationships that develop in a group. So, traditional classes shouldn’t be replaced with online learning.
n channels and choosing the ones that best suit a person’s style of filtering the information.