Which of the following crops is a fruit vegetable?

Here are the solutions to the questions:

16. A crop that best exhibits the observed symptoms when the nutrient is deficient is
The symptoms described in the previous question (Q15) were poor root formation, immature dropping of fruits, and leaves turning purple, which are characteristic of phosphorus deficiency. Maize is known to exhibit purpling of leaves when phosphorus is deficient.

• The correct option is B. maize.

17. Lost nutrients could be replenished in soils by
Cover cropping involves planting crops to cover the soil, which helps to prevent erosion, suppress weeds, and, especially with leguminous cover crops, add organic matter and fix nitrogen, thereby replenishing soil nutrients.

• The correct option is C. cover cropping.

18. The bacterium that converts atmospheric nitrogen to ammonia is
Nitrogen fixation is the process by which atmospheric nitrogen is converted into ammonia. Azotobacter is a genus of free-living bacteria known for its ability to fix atmospheric nitrogen.

• The correct option is D. Azotobacter.

19. An example of an overhead irrigation system is
Overhead irrigation systems apply water from above the crop, mimicking rainfall. Sprinklers are a common type of overhead irrigation that spray water over the field.

• The correct option is D. sprinkler.

20. Molasses is a by-product obtained from the processing of
Molasses is a thick, dark syrup that is a by-product of the refining of sugarcane or sugar beets into sugar.

• The correct option is D. sugarcane.

21. Cocoyam is propagated by
Cocoyam (e.g., Colocasia esculenta or Xanthosoma sagittifolium) is a tuber crop that is vegetatively propagated using its underground stem, which is called a corm.

• The correct option is C. corm.

22. If maize requires $250 \text{ kg}$ of calcium nitrate fertilizer per hectare, the quantity of fertilizer required for $2,000 \text{ m}^2$ of farmland is