Refer to the two statements given below and choose the CORRECT option.
Statement A: Mixed cropping helps reduce the risk of total crop failure under adverse environmental conditions.
Statement B: In mixed cropping, different crops are grown in a definite row arrangement to minimise competition.

The correct option is Statement A is correct but B is incorrect.

Analysis of Statements:

1. Statement A: "Mixed cropping helps reduce the risk of total crop failure under adverse environmental conditions."
This statement is correct. Mixed cropping involves growing two or more crops simultaneously on the same piece of land (e.g., wheat + mustard, or wheat + gram). Since different crops have different tolerances to drought, pests, and diseases, if one crop fails due to adverse environmental conditions, the other crop may survive, thereby reducing the risk of total crop failure and providing insurance against weather uncertainties.

2. Statement B: "In mixed cropping, different crops are grown in a definite row arrangement to minimise competition."
This statement is incorrect. Growing different crops in a definite pattern or row arrangement (e.g., a few rows of one crop alternating with a few rows of another crop) is called intercropping, not mixed cropping. In mixed cropping, seeds of different crops are mixed together before sowing, and there is no specific row pattern followed.

Therefore, Statement A is correct, while Statement B is incorrect.