Tại sao mụn trứng cá lại xuất hiện ở tuổi dậy thì

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Vì khi dậy thì , các nội tiết tố trong cơ thể thay đổi gây ra sự nổi mụn. (mẹ tớ nói thế)

     Mụn trứng cá lại xuất hiện ở tuổi dậy thì bởi vì hormone gì gì đó tăng lên ở tuổi đậy thì. Những nội tiết tố này làm tăng kích thước của các tuyến bã nhờn và làm tăng lượng dầu do tuyến bã nhờn sản xuất ra⇒xuất hiện mụn trứng cá.

                                            ~$Chúc-bạn-học-giỏi!!!^{}$ ~

                               

   

 

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IX. Read then answer write True(T) or False(F) Scotland is in the north of Great Britain. It is famous for its rich culture as well as its amazing natural beauty. Visitors to this land can spend endless days exploring its historic centuries- old castles. But be aware- lengend says that some of them haunted by ghosts. Fun- lovers can experience its world-famous festival, the Highland games where they can enjoy unique Scottish activities such as the piping, druming, and dancing. They can also see traditional sports, or drink whisky with the local people. Driving through vast green pastures, or boating on scenic lakes- or lochs- are othere attractions that Scotland offers. The great people of this lengendary land also given many of the world’s important inventions like the telephone, the television, penicillin and the raincoat. Edinburgh, the capital, was the first city the world to have its own fire brigade in 1824. Edinburgh University welcomed the first female medical student in Great Britain in 1869. a) True or False 1. Scotland is famous for its rich culture and amazing natural beauty ……….. 2. Visitors can’t explore the history of old catles in this land. ……….. 3. You can see unique Scottish activities in the Highland. ………. 4. Telephone, Television, penicillin were invented by Scots. ……….. b) Answer the questions 1. What was the capital city? => …………………………………………………….. 2. When was the fist fire brigade created? => ………………………………………..

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