Ozone is unstable faintly bluish gas that is the most chemical active form of Oxygen.

Câu hỏi liên quan

• All root vegetables grow underground, and not all vegetables that grow underground roots

• Until recently, photocopy machines were regarded strict as business and professional office equipment that required  lot of expensive service.

• They agreed with waiting for me if I was late.

ZUNIA12

• Ancient people used pot cooking, storing food, and carrying things from place to place

• I _____ the film last night because I _____ it several times before.

• You need to study hardly is you don’t want to fail your exams

• After writing it, the essay must be duplicated by the the student himself and handed into the department secretary before the end of year

• Find the word which has a different sound in the part underlined.

• It was him who came running into classroom with news.

• Why didn t you give me a call yesterday? We  .................  discuss everything together.

• Mr Ross, our old history teacher ruled his classes by a rod iron

• The environment can be defined as all living and nonliving items in an area at a specify time.

• The young are thought to be the future leaders of the country, and it is essential that they should understand their heritage full as possible.

• Most babies will grow up to be as clever as parents.

• After working hard for so long, we decided to enjoy ourself to  nice long holiday

• The author Susan Glaspell won Pulitzer Prize in 1931 for hers play, Alison’s House.

• Your computer can sometimes let you _____. 

• It has been reported that during twenty-four hour period, a minimal of three hundred North American women start their own businesses.

• The world would look different if human eyes were sensitive to infrared radiation.

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