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3 tháng 5 2017

@Nguyễn Trần Thành Đạt

8 tháng 5 2017

1Many pollution prevention opportunities are available to schools. Below is a list of some things schools can do:

  • Purchase less toxic cleaning supplies.
  • Use double-sided copies. Set all computers to print double sided.
  • Join the Clean Air Zone Program and actively encourage parents to adhere to the signs by no idling.
  • Use energy-efficient fluorescent lights and properly recycle them when they are spent.
  • Start an alternative transportation program at school to encourage biking, walking, or carpooling.
  • Turn off lights when not in use.
  • Use recycled products and other environmentally friendly products.
  • Plug holes and caulk windows to stop heat loss.
  • Lower the thermostat during unoccupied hours.
  • Turn off all machines when not in use.
  • Fix leaks in faucets and pipes.
  • Only run the dishwasher when it is full.
  • Use water-efficient and native landscaping.
  • Water school grounds in the morning or in the evening to prevent evaporation. Do not over water.
  • Use a minimal amount of fertilizers and pesticides and follow directions. Find natural alternatives if possible.
  • Use non-chemical pest control methods such as swatters for insects and mechanical traps for mice.
  • Use integrated pest management.
  • Start a Chemical Roundup Program to properly dispose of old and potentially hazardous materials and prevent the accumulation of chemicals in the future.
11 tháng 5 2021

    The world is currently very developed, which means that science and technology are very developing,especially mobile phones..They have a lot of advantages. Because they are so useful. They work 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 disadvantages. 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,mobile phones have a lot of advantages, are important parts of our life

25 tháng 10 2021

????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

help me ;-;

 

 

 

 

 

 

 

 

 

 

 

4 tháng 5 2021

bạn học chương trình jz ?

 

23 tháng 4 2018
Top 10 Advantages of Mobile Phones

1. They are convenient.

It’s great being able to call a friend when you are out and about – without being tied to a land line.

2. They can be life savers.

Taking a mobile phone with you when you go hiking is a basic safety precaution. If you lose your way or get stuck in bad weather, your mobile phone could just save your life.

Top 10 Disadvantages of Mobile Phones:

1. Dependency

It is easier than you might think to become addicted to your mobile phone, and so dependent on it that you forget to communicate in real life.

. Isolation

It’s ironic, but some people feel that the cellphone (which is designed to keep people connected) can actually drive us further apart. Have you ever seen a group of friends at a restaurant, looking down at their phones instead of each other? That.

6. Security issues

If someone taps in to your data they could steal your identity, pilfer your photos, and erase your contacts list.

tk:

1.Advantages of using the computer:

+)It  allows us to access the wealth of information that is available on the internet: The ability to research something or ask questions in real time is amazing.  Students can easily find information related to their lecture with the computer, they are active to grasp the main point of the lecture before going to school.

+) Another advantage of using the computer is their time saving nature.  The connection to the internet is of great use. .  It is much quicker to type a letter than to write one with a pen. People around the world can connect easily,free with the internet.

+)One of the root advantage of computer is accuracy. The computer can solve many calculations speedily and accurately which many people sometimes have difficulty in solving them.

2.Disadvantages of using the computer

+)Using the computer too much has bad effects on healthy. People are prone to healthy problems such as short-sighted ness,metal diseases,..

+)In addition, there are a lot of viruses which can influence a computer and destroy the data bank. It is a problem for banks and big concerns which store many of information inside their computers.

18 tháng 4 2022

REFER

*Advantages of computers in schools

This handheld device allows students to solve complex problems quickly and efficiently. In addition, it can reduce problems for simple tasks and allow students to spend more time in understanding the problem. Second, they are saved from monotonous calculations and the same boring process

*Disadvantages of computers

The picture is actually very different from what we discussed above. The advantages are not attractive and sometimes difficult situations can lower a student's confidence.

In the beginning, the brand might be the best on the market, but it's still a device. Power and efficiency are completely dependent on the capabilities of the operator. Students must know the instructions given in the manual. For example, the computer casio fx 570vn plus is very popular with students.

Calculators are available in many brands and each brand and model requires a specific set of instructions. It's a proven fact that many of us don't bother to read the manual, and it gets lost. Although the instructions are very simple, there are chances that students can make mistakes. One small mistake is enough to incorrect the answer. The student must be able to estimate the correct answer or the student will not recheck the problem