Almost all energy on the earth comes from the sun. Heat from the sun makes the earth warm enough for life. Plants use the sun’s energy to live and grow. Plants give off a gas called oxygen. Animals eat the plants and breathe the oxygen. Animals need plants in order to live, and plants need the sun. You use plants to make heat and energy. You can burn wood from trees. You can burn fossil fuels called coal, gas, and oil. Fossil fuels formed deep underground from plants and animals that died millions of years ago. The sun’s energy can also do harm. Too much sunlight can burn your skin, causing sunburn. Harmful rays from the sun can also cause a disease called skin cancer. Looking right at the sun can harm your eyes. You need to be careful of the sun. The center of the sun is called the core, which is extremely hot. All energy of the sun comes from the nuclear reactions in its core. It takes a long time for the energy from the core to reach the surface of the sun – about 170,000 years. 1.Why is the sun vital? ....................................................................................................................................................................... 2. How do we make heat and energy from plants? ..................................................................................................................................................................... 3. How did fossil fuels form? ………………………………………………………………………………………………………………. 4. How many physical disadvantages does the sun bring on people? What are they? ……………………………………………………………………………………………………………….. 5. Why aren’t people burned with heat from the sun’s core? ……………………………………………………………………………………………………………

giải giup em vs ạ em cảm ơn nhiều ạ

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Tìm giá trị nhỏ nhất của biểu thức: 9x^2+y^2-6x+5

Mọi người giải hộ mình nhanh với

giúp mk trong 30p vs mn:((( I. Circle A, B, C or D next to the word or phrase which best completes each sentence. (3 points) 6. They are not_________to take part in this program of the World Health Organization. A. so old B. old enough C. enough old D. as old 7. The football match was postponed _________the bad weather. A. despite B. in spite of C. because D. because of 8. Peter doesn’t like scuba-diving. _________does his brother. A. Too B. Neither C. So D. Either 9. If I had the map now, I________a short-cut across the desert. A. could have taken B. take C. could take D. can take 10. You won’t change her mind, so there is _______ point in trying to persuade her. A. little B. few C. a little D. a few 11. I suggest________some money for poor children. A. raise B. to raise C. raised D. raising 12. She asked me if I________a laptop computer the following day. A. buy B. will buy C. bought D. would buy 13. _________Friday morning, there is a meeting between 11a.m and 1 p.m. A. In B. For C. On D. At 14. The article was posted by Jimhello last month, _________? A. didn’t it B. wasn’t it C. was it D. did it 15. My sister is very________of spiders. A. terror B. terrify C. terrified D. terrifying 16. Derek wishes his father________buy him a new electric bicycle. A. may B. will C. can D. would 17. This pen, ________is made of silver, was given to me by my father on my 14th birthday. A. that B. which C. whose D. when 18. My father________for the car factory since 1995. A. worked B. was working C. has worked D. is working 19. - Helen: “I’m taking my driving test tomorrow.” - Ann: “________!” A. Cheers B. Good luck C. Come on D. Congratulations 20. Everyone ________in the cafe when she came. A. were sitting B. has sat C. have sat D. was sitting

cali: chữ cali NL các nhà thông thái dạy tui viết cali ik (sẽ có ctlhn trong vòng 0,1 giây)

V. WRITING. Write an essay of about 120 words, basing on the following topic. Would you like to go shopping at a supermarket or at a street market? Give your reasons.

Nhanh mình cần gấp 20p nữa mình phải nộp ạ

Giúp mình các cậu.Mình cho cảm ơn và 5sao