Preparation of soil & sowing — Class 8 CBSE Science MCQs with Solutions
Free Class 8 CBSE Science Preparation of soil & sowing MCQs with step-by-step solutions (16 questions). Part of Crop Production and Management. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — Preparation of soil & sowing · easy · theory
What is the process of turning and loosening the soil before sowing called?
A. Ploughing (tilling) ✓ Correct
B. Harvesting
C. Threshing
D. Winnowing
Solution: Turning and loosening the soil before sowing is called tilling or ploughing.
Q2 — Preparation of soil & sowing · easy · theory
In a plough, the triangular iron strip that cuts and turns the soil is called the:
A. Ploughshare ✓ Correct
B. Ploughshaft
C. Beam
D. Leveller
Solution: The ploughshare is the triangular iron strip of the plough that cuts and turns the soil.
Q3 — Preparation of soil & sowing · easy · theory
After ploughing, the field is made flat and even (which helps sowing and irrigation) using a:
A. Leveller ✓ Correct
B. Plough
C. Sickle
D. Seed drill
Solution: Levelling of the ploughed field is done with a leveller, which is good for sowing and irrigation.
Q4 — Preparation of soil & sowing · easy · theory
When seeds are put in water during the float test, the damaged seeds usually:
A. Float on the water ✓ Correct
B. Sink to the bottom
C. Sink faster than the healthy seeds
D. Stay suspended in the middle of the water
Solution: Damaged seeds are hollow and lighter, so they float on the water, which separates them from the healthy seeds that sink.
Q5 — Preparation of soil & sowing · easy · theory
The lumps of soil left in the field after ploughing are known as:
A. Crumbs ✓ Correct
B. Chaff
C. Stubble
D. Humus
Solution: The lumps of soil formed after ploughing are called crumbs, and they must be broken before sowing.
Q6 — Preparation of soil & sowing · medium · theory
Which tool is driven by a tractor and is used for ploughing, saving both labour and time?
A. Cultivator ✓ Correct
B. Hoe
C. Leveller
D. Sickle
Solution: The cultivator is tractor-driven and ploughs the field while saving labour and time.
Q7 — Preparation of soil & sowing · medium · theory
Which tool has a bent iron plate that works like a blade and is used to remove weeds and loosen the soil?
A. Hoe ✓ Correct
B. Seed drill
C. Leveller
D. Combine
Solution: The hoe has a bent iron plate that works like a blade to remove weeds and loosen the soil.
Q8 — Preparation of soil & sowing · medium · theory
Seeds of which crop are first grown in a nursery and then transplanted to the field as seedlings?
A. Paddy (rice) ✓ Correct
B. Wheat
C. Gram
D. Mustard
Solution: Paddy is first grown in a nursery, and its seedlings are then transplanted manually to the field.
Q9 — Preparation of soil & sowing · medium · theory
In a bullock-drawn plough, which part rests on the necks of the bulls?
A. Beam ✓ Correct
B. Ploughshare
C. Ploughshaft
D. Hoe
Solution: The beam of the plough rests on the bulls' necks so the animals can pull it.
Q10 — Preparation of soil & sowing · medium · theory
The traditional tool used for sowing seeds is shaped like a funnel and has:
A. Two or three pipes with sharp ends ✓ Correct
B. A single rotating nozzle
C. A bent iron plate like a blade
D. A triangular iron strip
Solution: The traditional funnel-shaped sowing tool lets seeds pass through two or three pipes with sharp ends into the soil.
Q11 — Preparation of soil & sowing · medium · theory
Why is proper spacing kept between plants while sowing seeds?
A. To avoid overcrowding so each plant gets enough sunlight, nutrients and water ✓ Correct
B. So that the seeds can be sown much deeper in the soil
C. So that no weeds can ever grow in the field
D. So that the crop ripens and can be harvested earlier
Solution: Proper spacing prevents overcrowding so that every plant gets enough sunlight, nutrients and water.
Q12 — Preparation of soil & sowing · medium · theory
Loosening the soil by ploughing helps the roots mainly because it:
A. Lets roots penetrate deeper and breathe, as air is present in loose soil ✓ Correct
B. Packs the soil tightly so that air is pushed out
C. Removes all the humus from the soil
D. Stops earthworms and microbes from living in the soil
Solution: Loose soil has air trapped in it, so the roots can penetrate deep and breathe.
Q13 — Preparation of soil & sowing · hard · theory
Turning the soil during ploughing is useful for the crop because it:
A. Brings the nutrient-rich soil to the top where the roots grow ✓ Correct
B. Pushes the nutrient-rich soil deep below, away from the roots
C. Packs the soil so tightly that no roots can grow in it
D. Washes away all the nutrients from the field
Solution: Only the top few centimetres of soil supports growth, so turning brings the nutrient-rich soil to the top for the roots.
Q14 — Preparation of soil & sowing · hard · theory
Loose soil encourages earthworms and microbes, which in turn benefit the field by:
A. Loosening the soil further and adding humus to it ✓ Correct
B. Making the soil hard and compact
C. Removing the humus and nutrients from the soil
D. Blocking air from reaching the plant roots
Solution: Earthworms and microbes favoured by loose soil further loosen the soil and add humus to it.
Q15 — Preparation of soil & sowing · hard · theory
A farmer wants to sow seeds across a large field at equal depth and distance, and also protect them from being eaten by birds. Which tool should he use?
A. Seed drill ✓ Correct
B. Traditional funnel
C. Leveller
D. Khurpi
Solution: The seed drill sows seeds uniformly at equal depth and distance and covers them with soil, which protects them from birds.
Q16 — Preparation of soil & sowing · hard · theory
During field preparation and sowing, in which order are these tools correctly used?
A. Plough first, then leveller, then seed drill ✓ Correct
B. Seed drill first, then plough, then leveller
C. Leveller first, then seed drill, then plough
D. Sickle first, then leveller, then plough
Solution: The soil is first loosened and turned with a plough, then the field is levelled with a leveller, and finally the seeds are sown with a seed drill.