4) Viết phương trình tổng quát của đường thẳng AB. 5) Viết phương trình tổng quát của đường trung tuyển hạ từ C của tam giác ABC. Trong mặt phẳng hệ trục tọa độ Oxy , cho tam giác ABC có A(1;-3), B(4;2), C(-2;-1)

IV- Read and complete aquaticthe passage using the words given: with/ are/industrial /cholera/ Water/ for /aware/ pollution / atmosphere/aquatic .1-................... pollution means one or more substances have built up in water to such an extent that they cause problems 2-............. animals or people. There... 3- ........... also two different ways in which pollution can occur. If pollution comes from a single location, such as .4-................... waste into lakes and rivers, sewage from households, pesticides and herbicides, it is known as point-source ....5-........................ While pollutants from storm water and the .6- ....................... result in "non-point source" pollution. Water pollution can outbreak of 7- ................. and other diseases, even die in human. It also causes the death of ..8-.............. animals and plants and further damage to the environment. Dealing ...9-.................. water pollution is something that everyoneshould do. With the laws, governments have very strict laws that help minimize water pollution. Making people ..10-........................ of the problem is the first step to solving it

Trình bày sự tiến hóa của hệ tuần hoàn của các lớp cá, lưỡng cư,... Tuần hoàn kín ưu việt hơn tuần hoàn hở ở những điểm nào? ĐỐ AI LÀM ĐC.LÀM ĐC CHO 5 SAO

1. What’s a ______________? It’s a subtance that contaminates something. (POLLUTE) 2. Scientists say that exhaust fumes are ______________ our city. (POISON) 3. Many seabirds were ______________ because of the oil spill. (DIE) 4. Waste from households will gradually ______________the lake. (CONTAMINATION) 5. Trees can’t grow here because the soil is too ______________. (POLLUTE) 6. That dierce storm left behind badly ______________buildings. (DAMAGE) 7. The fish are floating in the water. (DIE) 8. Don’t drink that water. It’s ______________. (CONTAMINATE) 9. The acid rain has caused ______________to the trees in this area. (DAMAGED) 10. If we ______________the air, more people will have breathing problems. (POLLUTION) 11. The soil becomes ____________because of the use of so many pesticides and fertilizers. (CONTAMINATE) 12. ____________waste spills can contaminate groundwater. (INDUSTRY) 13. In many developing countries, water pollution is usually a leading cause of ___________.(DIE) 14. _______elements have been found in both ground and underground water sources.(POLLUTE) 15. Fish and many other animals are killed by ____________in their habitat. (POLLUTE) 16. A number of cleaning products contain ____________chemicals. (HARM) 17. Water samples collected at these villages were seriously _____with bacteria. (CONTAMINATE) 18. People believe that the __________water has brought cancer to the local residents.(POLLUTE) 19. Light pollution makes us ____________to see the stars in the sky. (ABLE) 20. Noise is considered as ____________ pollution. (ENVIRONMENT)

Giúp mk với các bạn oi cần gấp

Viết đoạn văn 200 chữ trình bày suy nghĩ về ý kiến lời nói hành động thể hiện tính cách con người

Hai điểm A và B cách nhau một hồ nước. Để tìm khoảng cách giữa chúng, một nhà khảo sát định vị một điểm C trên mặt đất sao cho .. Anh ta cũng đo được m và mt. Tìm khoảng cách giữa A và C.

Trong phòng học có một số ghế dài.nếu xếp mỗi ghế 3 hs thì thừa ra 4 học sinh không có chỗ .nếu xếp mỗi ghế 4 học sinh thì thừa ra 2 ghế .hổi có bao nhiêu ghế và bao nhiêu học sinh

Một khối lập phương có thể tích 0,027 m2. Hỏi diện tích xung quanh của nó là bao nhiêu xăng-ti-mét vuông?

I. Put the dialogue into the correct order. — Some are entertaining, but I find most of them stupid and childish. — I m sorry. I have some homework to do tonight. — I can’t stand western and horror. — So, what is your most favourite horror film? 1 What type of movies do you like? — The Ring.I m going to watch it again tonight. Do you want to watch it? -— That s an interesting combination. How about western movies? — Why don t you like horror? They’re entertaining, I think. — I’m fascinated by scary movies. — I like some sorts of movies, primarily drama and science fiction.