Irrigation, Harvesting and Storage MCQs Class 8
Irrigation, Harvesting and Storage MCQs Class 8 Science
Class: 8
Subject: Science
Section: Crop Production and Management
Topic: Irrigation, Harvesting and Storage
Board: CBSE – Based on NCERT Syllabus
These Multiple Choice Questions (MCQs) are designed strictly as per the NCERT syllabus, making them ideal for CBSE Class 8 Science examinations.
Subject: Science
Section: Crop Production and Management
Topic: Irrigation, Harvesting and Storage
Board: CBSE – Based on NCERT Syllabus
These Multiple Choice Questions (MCQs) are designed strictly as per the NCERT syllabus, making them ideal for CBSE Class 8 Science examinations.
1. Artificial supply of water to crops is called:
Answer: B. Irrigation
Irrigation ensures crops receive sufficient water when rainfall is inadequate.
Irrigation ensures crops receive sufficient water when rainfall is inadequate.
2. The main source of irrigation in India is:
Answer: A. Rainfall
Monsoon rainfall is the primary water source for Indian agriculture.
Monsoon rainfall is the primary water source for Indian agriculture.
3. Which is a traditional irrigation method?
Answer: C. Moat
Moat uses animal power to lift water from wells.
Moat uses animal power to lift water from wells.
4. Modern irrigation method that saves water:
Answer: B. Drip irrigation
Water is supplied drop by drop directly to roots.
Water is supplied drop by drop directly to roots.
5. Sprinkler irrigation is suitable for:
Answer: A. Uneven land
Sprinklers distribute water uniformly like rainfall.
Sprinklers distribute water uniformly like rainfall.
6. Cutting of mature crops is called:
Answer: B. Harvesting
It is done manually or by machines.
It is done manually or by machines.
7. Tool used for harvesting manually:
Answer: B. Sickle
A curved blade helps cut crops efficiently.
A curved blade helps cut crops efficiently.
8. Machine used for harvesting:
Answer: A. Combine harvester
It performs harvesting and threshing together.
It performs harvesting and threshing together.
9. Separation of grain from stalk:
Answer: B. Threshing
Done manually or by threshers.
Done manually or by threshers.
10. Separation of chaff from grain:
Answer: C. Winnowing
Wind removes lighter chaff.
Wind removes lighter chaff.
11. Grains are dried before storage to reduce:
Answer: B. Moisture
Moisture leads to fungal growth.
Moisture leads to fungal growth.
12. Large scale grain storage structure:
Answer: A. Silos
Used for bulk storage.
Used for bulk storage.
13. Storage protects grains from:
Answer: D. All of these
Proper storage prevents losses.
Proper storage prevents losses.
14. Chemical used to protect stored grains:
Answer: B. Pesticides
They prevent insect infestation.
They prevent insect infestation.
15. Granaries are used for:
Answer: B. Storage
They store food grains safely.
They store food grains safely.
16. Drip irrigation supplies water:
Answer: B. Drop by drop
Minimizes water wastage.
Minimizes water wastage.
17. Over-irrigation leads to:
Answer: D. All of these
Too much water harms crops and soil.
Too much water harms crops and soil.
18. Best time for harvesting:
Answer: B. At maturity
Ensures maximum yield.
Ensures maximum yield.
19. Threshing can be done by:
Answer: D. All of these
Various traditional and modern methods exist.
Various traditional and modern methods exist.
20. Safe storage ensures:
Answer: A. Food security
Proper storage preserves grains for future use.
Proper storage preserves grains for future use.