The ozone layer must be protected because it shields the Earth from excessive ultraviolet radiations.

Câu hỏi liên quan

• Identify the one underlined word A, B, C or D that must be changed for the sentence to be correct: 

  Listening to recorded books while driving is a means of utilize time wisely.

• Mark the letter A, B, C or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions:

  It is really incredible that he is unaware of such basic facts.

• Choose the best answer:

  In Malaysia,........................ is free.

ZUNIA12

• Louis Braille designed a form of communication enabling people to convey and preserve their thoughts to incorporate a series of dots which were read by the finger tips.

• You promised her a letter; you ought to_______ days ago.

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

• 1 hope you ................. the point of everything your mother and. I do for you.

• Mike _________ Alaska, so he's used to cold weather.

• Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the rest in the position of the main stress in each of the following questions.

   A. Appear     B. Orphan     C. Friendly     D. Beauty

• In the beginning, radios cost much more than they do today because they turned out slowly and expensively by hand.

• He knows to repair the carburetor without taking the whole car apart.

• The students in the dormitories were forbidden from going out after 11:30 p.m., unless they have special passes.

• All of the mammals, dolphins are undoubtedly among the friendly to human

• In my judgment, I think Hem is the best physicist among the scientists of the SEA region.

• Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the rest in the position of the main stress in each of the following questions.

  A. dissolve B. household C. confide D. approach

• _____________ is a detailed description of a person's life.

• Identify the error in each sentence: 

  No one has known anything about my promotion, haven’t they?

• In the sixteenth century, Francois Vieta, a England mathematician, used the vowels “a”, “e”, “i”, “o”, “u” to represent a unknown number.

• ____________ is a film or TV program presenting the facts about a person or event.

• The water is  .................... You can’t drink it.