The Earth Day comes from the idea of a former US politician Gaylord Nelson. He was worried about the world pollution, and the health of plants and animals. In 1969, he decided that the world should have a special day to teach people about how to make environment better. His idea became popular and on 22 April 1970 the first Earth Day was celebrated. Since then, environmentalists have used the day to educate people about their roles in protecting our planet. Earth Day finally became a global celebration around the world. On this day, people come together to talk about global warming, protecting rare animals and saving energy sources. Question 19: The word “their” in the second paragraph refers to ______. A: politicians’ B: people’s C: Dr. Nelson’s D: environmentalists’

Mọi người giúp e với ạ, em cảm ơn

giải thích nữa nha ....................

. Sắp xếp các từ sau để được câu đúng 1 . She/ earn /works / in order to / hard / a living . =>________________________________________ 2 . I / early /avoid / go / in order to/ to / traffic jams . / work =>________________________________________ 3 . We / local food . / stop/ in order to/ for a while / enjoy =>_____________________________________ 4 . You/ in the forum . / have to /in order to /register / participate =>____________________________________ 5 . They /to /took / waste/ the taxi /so /time . / as /not =>______________________________________ 6 . his English . / in order to / He/ to/ went/ school / practice =>______________________________________

mọi người ơi , mọi người ơi , giúp mình bài này được ko vậy , nếu ai trả lời đúng sạch sẽ cho hay nhất và 5 sao nhé mọi người ơi

giúp mình với ạ mk sẽ cho 5 sao

Giải dùm bài 3 dạng 2 với mn ơi.....

giúp bài 2, 3, 4 với ạ, hứa vote 5sao, mình đang cần gấp :((

Tìm các số tự nhiên sao cho $n^{1975}+n^{1973}+1$ có giá trị là số nguyên tố

Mọi người ơi giúp em với cho em xin đáp Ns với