De bai: Bieu cam ve ng than 8-10 cau

Mik dang can gap help mik vs!!!!!!

Cau 1:Trinh bay quy trinh san xuat giong cay trong bang hat

Cau 2:Vai tro cua giong cay trong?

Neu cac tieu de de chon giong cay trong tot

Cau 3:Trinh bay cach phan biet phan dam vs phan kali bang phuong phap nhiet,phan biet phan lan vs phan dam = phuong phap hoa tan

Cau 4:Cho cac dau hieu sau day:Re bi thoi,Canh bi gay,La bi thung,Canh bi chay nhua.

a)Em hay cho bt dau la dau hieu cua benh cay?Tu dau hieu do,em hay cho bt the nao la benh cay?

b)De phong tru sau benh hai dat hieu qua cao nhung ko gay o nhiem moi truong va ko gay hai cho con ng theo em nen su dung bien phap nao?Bien phap do dc thuc hien ntn?

Vt doan van 6-8 cau ghi lai cam nhan cua em ve 2 cau tho dau cua bai tho "Canh khuya"

Mong mn help mik mik dang can gap xi loi vi chu hoi kho doc vi unikey cua mik ko xai dc