8³.7+42²-36 =512x7+1764-36=3584+1764-36=5312

Vì 5312 chia hết cho 4 nên 8³.7+42²-36  chia hết cho 4

Do tác động tiêu cực của con người dẫn đến nạn cát lấn, biến đổi khí hậu

➜ Hình thành hoang mạc

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1. on -> in

2. colder -> coldest

3. go bed -> go to bed

4. meeting -> meet

5. a ->any

Chucs bạn học tốt

Tet is a national and family festival. It is an occasion for every Vietnamese to have a good time while thinking about the last year and the next year. At Tet, spring fairs are organized, streets and public buildings are brightly decorated and almost all shops are crowded with people shopping for Tet. At home, every is tidied, special food is cooked,offerings of food, fresh water, flowers and betel are made on the family altar with burning joss- sticks scenting the air. First-footing is made when the lucky visitor comes and children are given lucky money wrapped in a red tiny envelope. Tet is also a time for peace and love. During Tet, children often behave well and friends, relatives and neighbors give each other best wishes for the new year.

I think we need to stay healthy to prevent the flu, keep as healthy as i can by taking good care of myself. Sleep and nutritional considerations are help to prevent the onset of a cold or flu, a healthy lifestyle helps my immune system to be in its best possible shape, giving me the best chance of being able to fight off the onset of a cold or flu.
I need to eat healthily. Healthy foods such as vegetables, fruit, grains, etc., are an important part of keeping my body nutrition at its optimum. Processing fatty and sugary foods don't give the immune-boosting protection that healthier food does. Sugary foods can decrease immune function.
Exercise regularly. Exercise has enhancing immune-system that can help ward off illness. Overdo too much strenuous or excessive can leave me prone to illness, too. I make sure to get adequate sleep every night, get at least seven to eight hours sleep nightly
I need to reduce my stress too. Stress can harm the ability of my immune system to work optimally, and people who are stressed tend to catch colds more than less stressed people. Manage my stress is contributing to prevent the flu. Beside, Drinking water may also help wash cold and flu viruses from my throat to my stomach where they cannot survive. Although getting cold doesn't actually cause a cold or flu (the viruses do), but being cold can reduce my stamina and make me feel miserable and fatigued, so i need to stay warm.
In addition, i eat more fruits to get vitamin C that might help me prevent the common cold, and i will also drink more milk, this will be help me healthy and stronger to prevent the cold