3.a) Khi đốt cháy 10kg củi khô thì tỏa ra lượng nhiệt là bao nhiêu? b) Đế có được lượng nhiệt như vậy thì cần phải đốt cháy bao nhiều kg than đá. Biết năng suất tỏa nhiệt của củi khô và than đá là 10'J/kg và 27.10ʻJ/kg. Ghi tóm tắt giải dễ hiểu ạ

III. Read the passage carefully, and then do the following tasks. The healthy eating diet Healthy eating is about feeling great and having more energy. If you choose the right foods, your healthy diet will be a tasty diet, too. You can still enjoy your favourite sweet and salty foods, but too much sugar and salt is bad for your body. Dairy products like milk, cheese, and yoghurt are great because they contain calcium and keep your teeth and bones healthy. You should choose low-fat dairy products. Meat, fish, eggs, beans, and nuts are important, too. They keep our bodies healthy and they give us energy to work and play. Whole grains are an important part of every meal. If you eat lots of whole grains, you will have a healthy heart. Whole grains are in bread, cereal, pasta, and rice. Dark bread and brown rice are great sources of whole grains. Fruit and vegetables are the most important part of a healthy diet. They are low in calories and full of vitamins. Eat lots of fruit and vegetables with every meal, and as snacks during the day. Fruit and vegetables with darker colours have more vitamins. A. Find the underlined words in the text to match the meanings. 1. _______________: an amount of energy. 2. _______________: the power that your body gets from food. 3. _______________: food that you eat between meals. 4. _______________: If food is this, it tastes of sugar. 5. _______________: If food is this, it tastes of salt. 6. _______________: the types of food that you eat most often. 7. _______________: things in food that we need to grow and be healthy. 8. _______________: the place where you get something from. B. Answer the following questions. 1. What does the healthy eating diet help you? _______________________________________________________________________________________ 2. What can you also enjoy when you have a healthy eating diet? _______________________________________________________________________________________ 3. Why are dairy products good for your health? _______________________________________________________________________________________ 4. What is the function of meat, fish, eggs, beans and nuts? _______________________________________________________________________________________ 5. Why are whole grains an important part of every meal? _______________________________________________________________________________________ 6. What types of foods can we get whole grains from? _______________________________________________________________________________________ 7. Why are fruit and vegetables the most important part of a healthy diet? _______________________________________________________________________________________ 8. What types of fruit and vegetables have more vitamins? _______________________________________________________________________________________

Giúp mik vs Câu 2a làm tắt cg đc nha ( gi chắc kq cũng được) Còn câu 2b giải rõ ra hộ mik vs ạ

Choose the correct answer. Parents and Friends We can choose our friends, but we can’t choose our (couples / guests / strangers / relations)1 ……. That doesn’t mean, though, that members of our family can’t also be our friends. Many children have such a good relationship (by / for / with / from)2 …….. their parents that they see them as friends. Of course, when you’re a teenager, you’ll have (moods / arguments / lies / dishonesty)3 …….. with your parents. There will be times when you don’t (get / take / put / set)4 …….. on very well with them. That’s only natural. There will be times when you want to be (divorced / single / grateful / independent)5 …….. and solve your problems (on / by / for / with)6 …….. yourself. You’ll also (let / make/ take / fall)7 …….. your parents down sometimes. After all, nobody’s perfect and we all make mistakes. But your parents understand that. And as you grow (on / over / out / up)8 …….. and become an adult, you’ll probably realise you have lots of things in (private / common / contact / love)9 …….. with your mum and dad and become even (fonder / more proud / closer / more ordinary)10 …….. to them.

Giúp em câu 1 với câu 3 với ạ . Bài “vội” em cảm mơn

Bài 2: Cho biểu thức$\frac{x}{√x+2}$ với x ≥0; x khác 4 .Tìm tất cả các giá trị nguyên của x để biểu thức P có giá trị là số nguyên. biểu thức P có giá trị là số nguyên.

giúp mik với nhớ giải thik rõ nha sẽ vote 5*+clhn

Để có một lượng nhiệt là 77.10ʻJ thì cần đốt cháy bao nhiêu kg than bùn? Biết năng suất tỏa nhiệt của than bùn là 14.10 mũ 6 j/kg

Vẽ mình con chó (vẽ đơn giản thôi)

5/ What sort of research are they doing in the laborotary ? - What sort of research is ___________________________________________? 6/ You should place matches out of reach of children. -Matches _________________________________________________________ 7/ People say that inflation is getting out of control. -Inflation _________________________________________________________ 8/ We’ll have finished all the work by the weekend. - All the work _____________________________________________________ 9/ I heard her singing very beautifully. -She ____________________________________________________________ 10/ Scientists started discovering the universe thousands of years ago. -The universe started _______________________________________________ 11/ Nothing can be gained without effort. -We ____________________________________________________________ 12/ The robbers forced the bank manager to hand over the money. - The bank manager _______________________________________________ 13/ They let us go into the hall without an invitation card. -We ____________________________________________________________ 14/ The police stopped Tom on the highway and made him show his I.D card. - Tom ____________________________________________________________ 15/ Write your address on the back of the cheque. -Let______________________________________________________________ 16/ Where did your child find the keys ? - Where were ____________________________________________________ 17/ Some people think he is a dangerous criminal. - He ____________________________________________________________ 18/ They will have to sign these documents. - These documents ________________________________________________ 19/ The workers are going to pull down that old building. - That old building_________________________________________________ 20/ No one told me the truth. - The truth _______________________________________________________