Question : Insensitive cultivation refers to:

Option 1: production with insensitive use of labour

Option 2: production with intensive use of fertiliser

Option 3: raising production by intensive use of existing land

Option 4: raising production by large-scale use of imported inputs

Question : If $(2+\sqrt{3})a=(2-\sqrt{3})b=1$, then the value of $\frac{1}{a}+\frac{1}{b}$ is:

Option 1: $1$

Option 2: $2$

Option 3: $2\sqrt{3}$

Option 4: $4$

Question : If $a^{3}+\frac{1}{a^{3}}=2$, then the value of $\frac{a^{2}+1}{a}$ is ($a$ is a positive number):

Option 1: 1

Option 2: 2

Option 3: 3

Option 4: 4

Question : If $a^{2}+1=a$, the value of $a^{3}$ is:

Option 1: 0

Option 2: 1

Option 3: –1

Option 4: 2

Question : ____ is defined as the output per unit of variable input.

Option 1: Marginal product

Option 2: Production function

Option 3: Total product

Option 4: Average product