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Practice Class 8 Science Chapter 1 Crop Production and Management MCQ Questions with Answers based on the latest NCERT syllabus. Solve important concept-based MCQs on crop seasons, seed selection, manure, irrigation, and modern farming techniques with detailed solutions for CBSE, State Board, Olympiad, and scholarship exam preparation.
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Chapter Information
Subject: Science
Class: 8
Chapter: Crop Production and Management
Question Type: Multiple Choice Questions (MCQs)
Difficulty Level: Moderate
Based On: NCERT Latest Syllabus (2026)
Introduction
Modern agriculture combines traditional farming practices with scientific methods to improve crop production. Farmers select healthy seeds, enrich the soil with nutrients, provide proper irrigation, and follow suitable crop seasons for better yield. This practice set helps students strengthen these important concepts through NCERT-based MCQs.
What You Will Learn
✔ Crop seasons and their importance
✔ Selection of healthy seeds
✔ Benefits of organic manure
✔ Modern irrigation techniques
✔ Scientific farming practices
✔ NCERT concept-based revision
✔ Exam-oriented preparation
Why This Topic Is Important
Choosing the correct farming method at the right time increases crop production and reduces wastage. These concepts are not only important for examinations but also help students understand sustainable agriculture and food security.
1. MCQ Questions with Detailed Solutions
Q1. Farmers usually test the quality of seeds by placing them in water because healthy seeds generally ________.
A) Float on the surface
B) Sink to the bottom
C) Dissolve in water
D) Change their colour
Answer
B) Sink to the bottom
Concept Behind This Question
Healthy seeds are heavier and better developed.
Step-by-Step Solution
One simple method of selecting good-quality seeds is the water test. Healthy seeds are heavier and sink, whereas damaged or hollow seeds usually float on the surface.
Therefore, the correct answer is B.
Exam Tip
Healthy Seeds → Sink in Water
Q2. Which of the following is an advantage of adding organic manure to the soil?
A) It permanently removes weeds.
B) It improves soil texture and fertility.
C) It stops seed germination.
D) It changes Kharif crops into Rabi crops.
Answer
B) It improves soil texture and fertility.
Concept Behind This Question
Organic manure improves both physical and chemical properties of soil.
Step-by-Step Solution
Organic manure adds humus, increases water-holding capacity, improves soil aeration, and supports beneficial microorganisms, making the soil more fertile.
Therefore, the correct answer is B.
Exam Tip
Organic Manure = Healthy Soil
Q3. Which irrigation method is most suitable for watering uneven land efficiently?
A) Drip Irrigation
B) Sprinkler Irrigation
C) Canal Irrigation
D) Flood Irrigation
Answer
B) Sprinkler Irrigation
Concept Behind This Question
Different irrigation methods are suitable for different types of land.
Step-by-Step Solution
Sprinkler irrigation sprays water over the field like rainfall. It is especially useful in uneven land and sandy soils where traditional irrigation is less effective.
Therefore, the correct answer is B.
Exam Tip
Sprinkler Irrigation = Artificial Rainfall
Q4. Which of the following is NOT a Kharif crop?
A) Paddy
B) Maize
C) Soybean
D) Gram
Answer
D) Gram
Concept Behind This Question
Students should correctly identify examples of Kharif and Rabi crops.
Step-by-Step Solution
Gram is grown during the winter season and is a Rabi crop. Paddy, maize, and soybean are grown during the rainy season and are Kharif crops.
Therefore, the correct answer is D.
Exam Tip
Gram → Rabi Crop
Q5. Why should weeds be removed before they flower and produce seeds?
A) To improve the colour of crops
B) To prevent the spread of more weeds
C) To increase rainfall
D) To reduce sunlight
Answer
B) To prevent the spread of more weeds
Concept Behind This Question
Early weed control prevents future weed growth.
Step-by-Step Solution
If weeds are allowed to flower, they produce seeds that spread throughout the field. Removing weeds early prevents their multiplication and protects crop yield.
Therefore, the correct answer is B.
Exam Tip
Early Weeding = Better Crop Production
Important Formulas & Concepts
1. Seed Selection Test
Healthy seeds generally sink in water, while damaged seeds float.
2. Organic Manure
Benefits include:
- Improves soil fertility
- Adds humus
- Enhances water-holding capacity
- Supports soil microorganisms
3. Sprinkler Irrigation
Water is sprayed through rotating nozzles like rainfall.
Suitable for:
- Uneven land
- Sandy soil
4. Crop Seasons
Kharif Crops
- Paddy
- Maize
- Soybean
Rabi Crops
- Wheat
- Gram
- Mustard
5. Weed Control
Removing weeds before flowering prevents seed formation and reduces future weed growth.
Related Practice Questions
- How can healthy seeds be identified?
- What are the advantages of organic manure?
- Why is sprinkler irrigation useful?
- Differentiate between Kharif and Rabi crops with examples.
- Why should weeds be removed before flowering?
Mini Quiz Challenge
Fill in the blanks
- Healthy seeds usually __________ in water.
- __________ irrigation works like artificial rainfall.
- Gram is a __________ crop.
Answers
- Sink
- Sprinkler
- Rabi
Exam Tips
✔ Learn examples of Kharif and Rabi crops.
✔ Remember the seed selection water test.
✔ Understand the difference between sprinkler and drip irrigation.
✔ Revise the advantages of organic manure.
✔ Practice reasoning-based NCERT questions.
Quick Revision Notes
✔ Healthy seeds sink in water.
✔ Organic manure improves soil fertility.
✔ Sprinkler irrigation is suitable for uneven land.
✔ Gram is a Rabi crop.
✔ Weeds compete with crops.
✔ Early weeding prevents weed multiplication.
✔ Scientific farming increases crop yield.
✔ Proper irrigation conserves resources.
Common Mistakes Students Make
❌ Assuming all irrigation methods are equally suitable for every field.
❌ Confusing sprinkler irrigation with drip irrigation.
❌ Thinking floating seeds are healthier.
❌ Mixing up Gram with Kharif crops.
❌ Ignoring the importance of early weed removal.
Key Takeaways
✔ Healthy seeds generally sink in water.
✔ Organic manure improves soil quality.
✔ Sprinkler irrigation is ideal for uneven land.
✔ Gram is a Rabi crop.
✔ Early weed removal prevents the spread of weeds.
✔ Proper farming methods increase agricultural productivity.
✔ Scientific crop management ensures better harvests.
FAQs
1. Why do healthy seeds sink in water?
Healthy seeds are heavier and fully developed, so they sink in water.
2. What are the benefits of organic manure?
It improves soil fertility, soil texture, and water-holding capacity while supporting beneficial microorganisms.
3. Where is sprinkler irrigation mainly used?
It is mainly used in uneven land and sandy soil.
4. Is gram a Kharif crop?
No. Gram is a Rabi crop.
5. Why should weeds be removed early?
Early removal prevents weeds from producing seeds and spreading throughout the field.
Conclusion
Practice Set 4 focuses on scientific farming methods, including seed selection, irrigation, weed control, crop seasons, and the benefits of organic manure. These NCERT-based MCQs strengthen conceptual understanding and help students prepare confidently for school examinations, Olympiads, and scholarship tests. Regular practice will improve both accuracy and confidence in Science.
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