Question

4. Why is ploughing an important practice in agricultural fields? 5. Discuss some natural methods to prevent the growth of pests. (6. Raghav is a friend of Shashank, who is a farmer. Raghav advises his friend to not to grow the same type of crop (cash crop) in his field over several years to gain more money. a. Is Raghav's advice correct? Give reason. b. What can be the consequences of growing one type of crop in a field for a long period of time? 7 'Prolonged use of pesticides is undesirable'. Comment on this statement. 8. Explain nitrogen cycle with the help of a diagram. 9. In what way is pisciculture different from apiculture? 10. Explain the processes-harvesting, threshing and winnowing. 11. What is 'field fallow'? What is the aim of this practice?
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Answer 1

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