Нэвтрэх
WAEC - Geography (1999 - No. 19)
Which of the following forms of pollution is the least harzardous to man ??
Toxic waste disposed in rivers
The use of chemicals for fishing
Flaring of gas from refineries
A sound of 50 decibles in the air
Смхиман (0)
Сэтгэгдэл бичихийн тулд нэвтэрнэ үү
Сурталчилгаа
Javascript-д энэ хуудсыг зохих ёсоор ачаалахыг зөвшөөрнө үү
