Questions in Grade High-school

Questions in Grade High-school

[Done] What is the sum? [tex]$\frac{3}{x^2-9}+\frac{5}{x+3}$[/tex]

[Done] According to the passage, why was the US government taking action against Cuba? A. because Castro was a dictator and opposed democracy B. because Castro's ideas and government were revolutionary and violent C. because Castro took action and supported actions that put the Western world in danger D. because Castro supported a totalitarian government and the Soviet Union

[Done] In a Baroque concerto, a refrain played by the whole orchestra is called: A. A rondo B. A ricercar C. A round D. A ritornello

[Done] Fill in the missing words to complete the idea of the story. A. aorta B. inferior vena cava C. right atrium D. head E. heart F. pulmonary veins G. circulatory H. oxygen I. pulmonary arteries J. carbon dioxide K. lungs L. superior vena cava M. arteries N. left atrium O. right ventricle Hi, my name is Blad and I am a red blood cell. My buddies, the and blood vessels, and I form the system. Through this system I carry all sorts of nutrients and oxygen to the tissues of my town, the body, and remove and other wastes from them. Inside me, there is a protein called Hemoglobin that contains iron, which is like a vehicle to transport oxygen and carbon dioxide everywhere. When I go through the , this protein attaches to me. With the help from my best friend the heart, I am pumped and carried all over the body through to perform my duties. In a day I visit my best friend countless times and always leave through the , which is the main artery of the body. From the aorta I can either go north to the or south to the legs, arms and other parts through arteries. As I travel through the body, the arteries become thinner and thinner and become smaller vessels called arterioles. The arterioles divide into even tinier vessels called capillaries. Since the capillaries are so tiny, it is very easy to exchange material with other cells. Through the wall of the capillaries many other nutrients can come in and go out, and I lose and become blue. Through this journey around my town I see all kinds of wastes, and as I return to see my friend, the heart, I bring them with me so I can help get rid of them on my way. I always visit my friend, the brain, and my other friends around the body. When I visit my friend, the brain I return through the , which is the highway that returns blood from the head, neck and upper limbs. When I visit my friends from the south, I come back through the highway, which returns blood from the lower parts of the body. When I arrive at the heart I go through the , the upper chamber of the heart. Because I am blue I have to go through the after I go through the right atrium. The right ventricle pumps me to see one of my friends the lungs. To see my friend I go through . There my friend gives me oxygen and I become red again. Happily I go back to see my friend the heart through the . From there I am pumped to the left ventricle. After saying my goodbyes, I exit through the __ aorta and I can either go to see my friends in the north or revisit my friends in the south. On my daily journey around my town called the body, I go through veins in the digestive system. As the food in breaking down into simpler proteins, carbohydrates and fats in the small intestines, they are absorbed into the blood vessels, and are pumped all over the body to spread nutrients and others.

[Done] Which of the following expressions would be used on the internet to greet someone returning to a conversation? A) YB B) UB C) WB D) XB

[Done] Change the words in bold to mean more than one. a. The dog is chewing the bone. The dogs are chewing some bones. b. The friend is opening a box. The friends are opening some boxes. c. I can see a fox playing with a rabbit. I can see two foxes playing with two rabbits. d. The student is sitting on a bench. The students are sitting on benches. e. The doll is wearing a pink dress. The dolls are wearing pink dresses.

[Done] Match the question and the correct answer. 1. What do you wear outside when it's cold? 2. How do you carry your things to school? 3. Does your school have a school uniform? 4. How often do you wear that pretty necklace? 5. What do you put in your jacket pocket? 6. Do you live quite near to the castle? 7. Which is your favourite band? a. I put everything in my red backpack. b. Only at weekends. c. 'Queen's People'. I love them! d. A scarf, gloves and usually a big coat. e. We can choose our school clothes. f. My key and my bus ticket. g. No, our flat is in Green Street.

[Done] The difference in status can cause communication breakdown. Options: 1. Intrapersonal 2. Organizational

[Done] The sum of two numbers is 45 and the mean proportional between them is 18. The numbers are: a) (15, 30) b) (32, 13) c) (36, 9) d) (25, 20)

[Done] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?