Khi uống nước giải khát, người ta hay sử dụng ống hút nhựa dạng hình trụ đường kính đáy là 0,4 cm; chiều dài ống hút là 18 cm. Hỏi khi thải ra môi trường, diện tích nhựa gây ô nhiễm môi trường do 100 ống hút này gây ra là bao nhiêu

1) The man ____________ your mother is talking to is my English teacher. 2) Ha Long Bay is a beautiful spot ____________ thousands of tourists visit every year. 3) The students ____________are standing in front of the library are my classmates. 4) Hoa’s parents, ____________ are farmers, work very hard to earn their living. 5) The children like to play football ____________ is very popular in our country. 6) These are the latest news ____________ you might want to know. 7) Ba and his friends are fond of the performing animals ____________ have just come to town. 8) The beach ____________ the students are cleaning up the trash is a beautiful one. 9) The parrot ____________ can speak some words belongs to my close friend. 10) This is the best movie ____________ I have seen. 11) He is enjoys reading books ____________ are on computer science. 12) Mother’s Day is the day ____________the children show their love to their mother. 13) Tet is a Vietnamese festival ____________ takes place in late January or early February. 14) The little girl ____________ is wearing the red dress sings beautifully. 15) Thu enjoyed her trip to Da Lat ____________ her grandparents lived long ago. 16) Lan’s parents came back to Ha Noi ____________ they visited last year. 17) They like Asian food ____________ is sold in that market. 18) Mary, ____________ sits next to me, is good at maths. 19) My office, ____________ is on the second floor of the building, is not very big. 20) That’s Jack, ____________ lives next door.

Cho hình vẽ sau. Chứng minh: CA > AE + CF GIÚP EM VS Ạ

Bài 1 ạ bn nào lm hộ mk nhanh cái mk cho vote5 nha

Cho A(g) hỗn hợp Y gồm axit axetic và rượu etylic Na dư. Sau pứ thu đc 6,72 lít khí hiđro đktc. Mật khác nếu cho hỗn hợp Y ở trên t/d vs muối Na2Co3 dư thì thu đc 4,48 lít khí đktc a) viết ptpư xảy ra b) tính % k/lg mỗi chất trong hỗn hợp ban đầu

Viết phưrơng trình phản ứng hoàn thành chuỗi sau: FeS --> H2S → SO2 → H2SO4 Câu 1 viết pt phản ứng hoàn thành chuỗi sau

Giúp em với ạ, em đang cần gấp !!

Fill in the blanks with the words given. and or but so because however therefore then before after 1. What would you like, tea ­_________________ coffee? 2. I was late for class this morning _________________ the bus was late. 3. Nam didn’t study hard, _________________ he didn’t pass his exam. 4. Nga was very tired. _________________, she tried to finish her homework. 5. We can’t walk home _______________ it is very dark.

Giúp mình với mình đang cần gấp

nội dung của văn bản Sự giàu đẹp của tiếng Việt ,nêu các ý chính