A : The phase between 1960-1970 is often called the Green Revolution. R : The development of several high yielding varieties of wheat and rice in 1960s increased yields per unit area.
A : The phase between 1960-1970 is often called the Green Revolution. R : The develo
A : The phase between 1960-1970 is often called the Green Revolution. R : The development of several high yielding varieties of wheat and rice in 1960s increased yields per unit area.
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