Chapter 1 MULTIPLE CHOICE QUESTIONS 1. c 2. b 3. b 4. c 5. a 6. a 7. d 8. a 9. c 10. b 11. b VERY SHORT ANSWER QUESTIONS 12. Seed drill, because it is a modern agricultural implement unlike the others which are all traditional tools. 13. The field will be watered, tilled and ploughed before sowing seeds. 14. (i) False: Apart from good quality seeds, using appropriate agricultural practices are important for getting higher yield. (ii) False: It actually enriches the soil. (iii) False: Some crop plants need transplantation. (iv) False: Rhizobium (bacteria) present in the cells of root nodules of leguminous, plants fix nitrogen. (v) True. 15. October to March. 16. Loosening the soil/maintaining high moisture levels in soil. SHORT ANSWER QUESTIONS 17. Kharif : Rice or Soyabean, Rabi : Pea or Wheat. Pea/Soyabean are legumes that will fix nitrogen with the help of Rhizobium. Answers 12/04/18ANSWERS 111 18. (i)-c; (ii)-a; (iii)-b; (iv)-d 19. Crops cultivated without using any chemicals like fertilisers, pesticides, weedicides etc. are called organic foods. 20. Living : Seed, Earthworm, Rhizobium, Microbes, OX Non living: Plough, Urea, NPK, MANURE, Hoe 21. (a) Seed drill. (b) The advantages are, (i) seeds are SOWN at a uniform distance and depth to avoid over crowding. (ii) after sowing, seeds are covered by soil which prevent them from being eaten by birds. (iii) It saves time and labour. 22. (a) Animal husbandry. (b) Animals are provided with proper food, shelter and care. 23. Khariff : Maize , Paddy, Groundnut, Cotton. Rabi : Mustard, Pea, Wheat, Gram.