Vì sao đột biến gen thường gây hại cho bản thân sinh vật nhưng có ý nghĩa với chăn nuôi và trồng trọt ?

Mong giúp ạ.Cần gấp.cảm ơn trước Ko chéo mạng nhaaa

Dòng sông nào sau đây chảy qua đồng bằng Hoa Trung ? Sông Hoàng Hà .......A-mua ......Ti-gơ-rơ .....Trường Giang

8 thùng dầu có 760 lít dầu .Hỏi 5 thùng có tất cả bao nhiêu lít dầu

nhanh nha ai xong trước cho ctlhn nha

giúp mik với 15' sau mik phải nộp rồi

Giúp mik vs, đag cần gấp. Phải đúng 100% nhé. HW: 1. They _____ ( live) in a big city. 2. He _______ ( be) at home on Sunday. 3. I _____ ( work) yesterday. 4. His friends _________ ( come) to his house this weekend. 5. My father ________ ( be) at home last month. 6 Hoa _______ ( play) tennis in the afternoon. 7. We _______ ( go) to the library every day. 8. She ________ ( have) Vietnamese next Sunday. 9. There _______ ( be) a lot of flowers in a school garden. 10. There ________ ( be) many people at he market yesterday.

Giải nhanh giùm mình mng oie !!

1. New cars are much more quiet than / quieter than (quiet) old cars. 2. Do you think money is_______ _________ (important) good health? 3. This coat is________________ (nice) that one. 4. My old laptop was a lot________________ (big) my new one. 5. Gas is so expensive! I want a________________ (efficient) car. 6. Many people think modern life is________________ (good) life in the past. 7. Communication is a lot________________ (easy) it was 50 years ago. 8. The pollution in my city is much________________ (bad) it used to be. 9. I prefer________________ (hot) temperatures. That’s why I love summer. 10. My new school is a little________________ (far) my old one.

It's about 2 kilometers from my house to the post office