Artificial light is an important factor that contributes effectively in the process of socio-economic development. And in fact, the industrial society has been too dependent on artificial light because it is used to illuminate public places, offices, factories, residential areas ... to meet and serve activities. However, when light is not used effectively, causing excessive light is the cause of pollution. light.Based on the characteriss of the sources and the object affected, light pollution is classified into the following categories: light intrusion, light abuse, glare, mess and light. usurp the sky.
Intrusion light occurs when light reflects on unwanted or unwanted areas. Such as street lights shining into the windows of roadside apartments, the result could be insomnia for those who live in them.Bright light is the result of the opposite of the light and dark areas in the view. When bright light is shining directly into the eyes of pedestrians will lose visibility in the night and this problem is especially serious for traffic safety.
Light abuse is excessive use of light, causing waste. The main cause of this problem is not turning off the light when not needed or inappropriate lighting design makes the use of light larger than necessary or the light does not focus on the necessary area.The light is cluttered due to the excessive use of multiple light sources. At the same time, they are arranged to create interwoven light streams. Typically, there are too many advertising lights on the streets. This is also a cause for pedestrians to easily lose focus and can lead to accidents.
Light appropriating the sky usually occurs in densely populated areas, especially in modern urban areas. All the light from different sources reflects off the night sky, causing the area to shine brightly when viewed from afar. This problem especially affects astronomers when observing stars.

1) Did you use to go to the beach when you lived in nha trang ?

2) Linda used to with her parents

3) I did not use to collect  stamps when i was in primary school

4) He used to be a poor man , but he becomes a rich businessman

5) They did not use to go to the cinema every Sunday last year

6) In the past my hair used to be much shorter than that now

1 went

2.is

3.goes

4.preparing

1 went

2 is

3 goes

4 preparing

1.If taechers taech environmental issues at school, students will more aware of protecting the environment

2. If light pollution will happens, animals will change their behaviour patterns.

3.If we switch from nuclear power to renewable renewable energy sources, the levels off radioactive pollution will decrease

4. If the water temperature increases, some aqua creatures will unable to reroduces

5. If the water is contaminated, people will get more diseases

CHERRY

i am hungry because my father is not funny

Would you to have dinner at restaurant with me tomorrow?

Trả lời:

Would you to have dinner at restaurant with me tomorrow?

Tại sao bạn không lên google dịch nhỉ?????

1 Dose he to play basketball?no,no

Tom drives his car once a week

Tom wash his car once a week

     Nga và Hoa không thích nhảy múa 

   -> Nga and Hoa don't dancing

     chị gái của anh ấy không thích bơi 

    ->His sister don't swimming

     Nga và Hoa không thích nhảy múa 

   -> Nga and Hoa don't dancing

     chị gái của anh ấy không thích bơi 

    ->His sister don't swimming

1.C.Joyfull

2.A.Sense

3.D.Together

4.A.On

5.B.Wake

6.A.Something

K CHO MÌNH NHA

1. c

2. b

3. d

4. a

5. c

6.a

scarce

Trl :

Scare

#hoc_tot#