4th EVS NCERT Chapter 15

– How vegetables are prepared for selling: Sorting fresh vegetables from sacks and baskets, sprinkling water to keep them fresh, selling previous day's vegetables first【4:3†source】.

– Timing of work in the family: Starting work at 3 o'clock in the morning, finishing work by late at night, and starting again at 3 o'clock the next morning【4:3†source】.

– Different tasks performed by family members: Babuji arranges vegetables in the morning, Chhotu helps after school, family members help in sorting vegetables and maintaining freshness【4:3†source】.

– Vegetable quality and characteristics: Observing differences in okra sizes, measuring lengths, checking thickness and color consistency, counting seeds, and drawing observations in a notebook【4:0†source】.

– Vegetables and fruits classification based on spoilage rate and texture: Categorizing items that spoil quickly and those that last, identifying smooth and rough textures among them【4:0†source】.