Soil MCQs Class 7 with Answers
Soil MCQs Class 7 with Answers
Class: 7 | Subject: Science
Section: Soil
Topic: Soil MCQs with Answers
Based on: CBSE Board Examination Pattern
Section: Soil
Topic: Soil MCQs with Answers
Based on: CBSE Board Examination Pattern
Instructions: These Multiple Choice Questions (MCQs) are designed strictly as per the NCERT syllabus, making them ideal for CBSE Class 7 Science examinations. Each question includes detailed explanations for concept clarity and exam preparation.
1. Soil is formed by the process of:
Answer: B. Weathering
Soil forms from the breaking down of rocks over long periods due to wind, water, and temperature changes. This process is called weathering.
Soil forms from the breaking down of rocks over long periods due to wind, water, and temperature changes. This process is called weathering.
2. The uppermost layer of soil is called:
Answer: C. Topsoil
Topsoil contains humus and nutrients essential for plant growth, making it the most fertile layer.
Topsoil contains humus and nutrients essential for plant growth, making it the most fertile layer.
3. Humus is:
Answer: B
Humus improves soil fertility and water‑holding capacity.
Humus improves soil fertility and water‑holding capacity.
4. Clayey soil has:
Answer: B
Clay particles are very fine, so they hold more water.
Clay particles are very fine, so they hold more water.
5. Sandy soil has:
Answer: C
Large particles allow quick drainage and aeration.
Large particles allow quick drainage and aeration.
6. Best soil for crops is:
Answer: C
Loamy soil has balanced sand, silt, clay, and humus.
Loamy soil has balanced sand, silt, clay, and humus.
7. Soil erosion is:
Answer: B
Wind and water carry away fertile topsoil.
Wind and water carry away fertile topsoil.
8. Roots help in:
Answer: B
Roots hold soil and prevent erosion.
Roots hold soil and prevent erosion.
9. Percolation rate is highest in:
Answer: C
Large pores allow faster water movement.
Large pores allow faster water movement.
10. Soil profile shows:
Answer: B
A vertical section revealing horizons.
A vertical section revealing horizons.
11. Subsoil lies below:
Answer: B
It contains fewer nutrients.
It contains fewer nutrients.
12. Soil contains:
Answer: D
All are essential soil components.
All are essential soil components.
13. Ploughing helps in:
Answer: A
It loosens soil for roots.
It loosens soil for roots.
14. Terrace farming prevents:
Answer: B
Steps slow water flow.
Steps slow water flow.
15. Black soil is good for:
Answer: A
It retains moisture well.
It retains moisture well.
16. Red soil color is due to:
Answer: A
Iron oxide gives red color.
Iron oxide gives red color.
17. Soil fertility depends on:
Answer: D
All contribute nutrients.
All contribute nutrients.
18. Water holding capacity is highest in:
Answer: B
Fine particles retain water.
Fine particles retain water.
19. Soil conservation means:
Answer: B
Methods to preserve fertility.
Methods to preserve fertility.
20. Afforestation helps in:
Answer: B
Trees bind soil and reduce erosion.
Trees bind soil and reduce erosion.