.Africa
<span>2.Afghanistian </span>
<span>3.Russia </span>
<span>4.Mediterranean</span>
The U.S. federal system consits of a national government and what other government level
regional level
Quality inputs (improved seeds and fertilizers) are essential to raising productivity (yields per unit area planted) under both the rainfed and irrigated conditions. In addition, strong extension and advisory services are important for enhancing the adoption and efficiency of improved inputs.
If i'm not wrong, it's true