Diện tích rừng ở việt nam qua các thời kì (đơn vị: triệu ha) Năm 1943 2001 2013 Diện tích rừng (Triệu ha) 14,3 11,8 13,9 a, Vẽ biểu đồ hình cột thể hiện sự biến động về diện tích rừng nước ta giai đoạn 1943-2013. b, Nhận xét và giải thích về xu hướng biến động của diện tích rừng ở Việt Nam trong giai đoạn trên. giúp với ạ

Các câu hỏi liên quan

1. Air......................, together with littering, is causing many problems in our cities today. A. pollute B. pollution C. polluting D. polluted 2. The road in front of my office is always .................... when it rains heavily. A. to flood B. flooding C. flood D. flooded 3. Singapore is famous for its .................... and green trees. A. cleanliness B. cleanly C. cleaning D. clean 4. In some English speaking countries, turkey and pudding are ............... food at Christmas. A. national B. historical C. traditional D. possible 5. The USA has a population of 304 million, and it’s the third ............. country in the world. A. smallest B. largest C. narrowest D. highest 6. The roof of the building .......................... in a storm a few days ago. A. damaged B. was damaged C. has damaged D. has been damaged 7. A severe tropical ...................... is called a typhoon. A. drought B. rain C. flood D. storm 8. As soon as the floodwater ...................... down, people ........................ their houses. A. went - cleaned B. had gone – cleaned C. went - had cleaned D. had gone – had cleaned 9. If I were you, I ..................... do something to prevent him from littering. A. would B. did C. will D. do 10. Earth .................. by the gravity of the Sun and orbits around it. A. holds B. is held C. is holding D. held 11. By the time we ........................ to the cinema, the film had started. A. gets B. had got C. has got D. got 12. When the policeman came there, the robber .................. A. had left B. has left C. left D. was left 13. All people who were without homes in the flood were provided with .................. accommodation. A. short B. temporary C. present D. instant 14. Seven of ten people prefer face-to-face ..................... when having a date. A. language B. contact C. code D. sign 15. When thermal pollution happens, the water temperature in streams, rivers, lakes and oceans ........................ A. changes B. keeps C. remains D. stays