In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice: (A) If Both assertion and reason are true and reason is the correct explanation assertion.
(B) If Both assertion and reason are true but reason is not the correct explanation of assertion.
(C) If Assertion is true but reason is false.
(D) If Both assertion and reason are false.

9. Assertion: Alluvial soil is deal for ideal growth of paddy, wheat, cereal and pulse crops.
Reason: Alluvial soil is well-known for capacity to hold moisture.
10. Assertion: A country that was extremely rich in natural resources has mainly relied on oil extraction for revenue generation for several centuries. However, the scientists predict that the country may become poor in the future if other means of generating income are not devised.
Reason: Oil is a non-renewable resource, and it is likely to get exhausted if not used judiciously.
11.Assertion : Biochemical inputs and irrigation are used for obtaining higher production.
Reason: Doses of biochemical input are used to grow crops rapidly.

A (sorry if this is wrong)

i need more info !

marginal cost is a microeconomic measure that us to evaluate the extent to which the level of production of a good is sustainable in accounting, that is, to how many quantities the company plans to profit from the production of the good.

the concept of marginal cost is simple, it means the cost of producing one more item. for example, in the case of pies, the marginal cost is the cost of producing one more pie than those that have already been produced.

it is important to understand that productive activity influences marginal cost. the marginal cost of some goods can be very high, while others may be insignificant. for example, the marginal cost of producing an extra plane is very high. already the marginal cost of a water company to provide 1l more water is derisory.

in the case of pies, the cost involves the inputs, the labor and the fixed cost, which involves the fixed space of the bakery. the level of production initially has the marginal cost decreasing because there is space and manpower available. however, to produce more you have to hire more workers and buy more inputs. if physical space is limited, workers will conflict with places, inputs and their productivity will decrease, meaning there is an optimum point of production for each level of space and manpower. from this point on, the productivity of the workers will be getting smaller because of lack of space, so that the marginal cost of producing one more pie will be increasing. so, although you have not posted the chart, but if you have the answer, you can see that my explanation goes according to the marginal cost curve that will increase from the 4th pie, answer (c).