4) Why is it important to educated the farmers about the use of pesticides and chemical fertilizers?

The creation of the trans-siberian railway allowed people to travel across russia. how could this railway impact russian culture?

The first atomic explosion was detonated in the desert north of alamogordo, new mexico, on july 16, 1945. what percentage of the strontium-90 ( yr) originally produced by that explosion still remains as of july 16, 2016?

Aregion groups people together accodring to their traditions