Khí hậu là yếu tố quan trọng nhất ở mỗi đới khí hậu khác nhau có các loại thực vật khác nhau và sự sinh trưởng cũng khác nhau.

Vd: Ở sa mạc, chỉ có xương rồng mọc lên còi cọc, gầy gò và thưa thớt

Ở rừng rậm nhiệt đới, cây cối mọc lên um tùm xanh, xanh tốt và đặc biệt có rất nhiều loại cây sống ở đó

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks. Fill in the appropriate word in question 33

  Urbanization programmes are being carried out in many parts of the world, especially in densely (33)____ religion with limited land and resources. It is the natural outcome of economic development and industrialization. It has brought a lot of benefits to our society. However, it also (34) _______ various problems for local authorities and town planners in the process of maintaining sustainable urbanization, especially in developing countries.

  When too many people cram into a small area, urban infrastructure can’t be effective. There will be a (35) _______ of livable housing, energy and water supply. This will create overcrowded urban districts with no proper facilities. Currently, fast urbanization is taking place predominantly in developing countries where sustainable urbanization has little relevance to people's lives. Their houses are just shabby slums with poor sanitation. Their children only manage to get basic education. Hence, the struggle for (36) _______ is their first priority rather than anything else. Only when the quality of their existence is improved, can they seek (37) _______ other high values in their life.

A. survive

B. survival 

C. survivor 

D. survived

Cacbohiđrat ở dạng polime là

A. glucozơ

B. xenlulozơ

C. fructozơ

D. saccarozơ