Petroleum  is composed of cmplex mix of Hydrogen and Carbon.

Câu hỏi liên quan

• They were all shock at his failure in competition.

• President Wilson had hoped that World War I be the last great war, but only two decades later, the Second World War was erupted .

• Choose the correct answer to each of the following questions. "In addition to _____ the caves and grottos, and seeing its flora and fauna, visitors can also enjoy mountain climbing."

ZUNIA12

• Many people have found the monotonous buzzing of the vuvuzela in the 2010 World Cup matches annoyed.

• There is nothing more annoying than you are interrup when you are speaking.

• Since infection can cause fever as well as pain, it is a good idea to check a patient’s temperature.

• If a person were to look up from the bottom of a deep well, he will be able to see stars in the middle of day.

• The National Basketball Association will not let any athlete to continue playing in league unless he submits voluntar to treatment for drug addict

• As pure white sugar, Dextrose used mainly in candy, baked goods, and canned goods

• First raise right hand, and then, you should repeat after me 

• The teacher decided to fail the student with the gro of his poor performance in tests and too small progress

• Choose the letter A, B, C or D to complete the sentences. " If you don't keep silent, you ________wake them."

• Choose the correct anwer to complete. "They _____ care and comfort to the disadvantaged and handicapped children and help them to get over difficulties"

• I’ve got my photos drying out on the kitchen floor, so what you will do, don’t tread on them!

• Gunpowder, in some ways the most effective of all the explosive materials, were a mixture of potas nitrate, charcoal, and sulfur.

• Before the Industrial Revolution come to America, the vast majority of the population had lived in rur area

• Many exercises such as calisthes, running, or to swim involve producing muscle tension through range of movements that are called isotonics.

• All the students are looking forward spending their free time relaxing in the sun in summer.

• Choose the correct answer to complete the sentence. "All students are _____ to take part in providing education for children in remote and mountainous areas"

• Most bats roost in crevices, caves, or building y day and are active at night or twilight.