PLANT NUTRIENTS IMPROVEMENT IN FOOD RESOURCES 15 Class 9th Science (Biology) (Practice Sheet) 1 Which of the following is a micronutrient required by plants? A. Nitrogen B. Phosphorus C. Iron D. Calcium 2 What is the primary purpose of compost in agriculture? A. Weed control B. Pest management C. Soil fertility enhancement D. Water retention in sandy soils 3 What is the purpose of crop rotation in agriculture? A. Enhance soil fertility B. Increase waterlogging C. Promote weed growth D. Decrease overall yield 4 How can pests be controlled in agriculture? A. Planting disease-resistant crops B. Using excessive fertilizers C. Ignoring timely checks on crops D. Watering crops irregularly 5 What is the purpose of summer ploughing in pest management? A. Increase pest population B. Enhance weed growth C. Destroy weeds and pests D. Improve soil fertility 6 Name micronutrients essential for plant growth. 7 Define compost and how it is prepared. 8 Why is crop rotation important in agriculture? 9 Mention preventive measure against pests in agriculture. 10 What is the purpose of irrigation in crop cultivation? Page 1 Page 1 Email: Phone No: Website:
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