Đăng bởi Hoàng Oanh
"chuyen-dong-tu-quay-cua-trai-dat"
"luc-hap-dan-giua-trai-dat-va-mat-troi"
"tac-dong-cua-chuyen-dong-nay-den-cac-hien-tuong-tu-nhien"
"anh-huong-den-khi-hau-va-sinh-vat-tren-trai-dat"
"ung-dung-trong-du-bao-thoi-tiet"