Question Paper
Class / Subject: Class 7 (ICSE) · Geography
Chapter: Chapter 8 — Chapter 8: Weathering and Soil Formation
Time Allowed: 32 minutes
Max Marks: 16
1. What does weathering do? [1]
(A) Breaks down rocks over time
(B) Builds up rocks
(C) Melts rocks instantly
(D) Nothing to rocks
2. What is physical weathering? [1]
(A) Breaking rocks through temperature or water
(B) Chemical reactions dissolving rocks
(C) Instant rock melting
(D) No physical process
3. What is chemical weathering? [1]
(A) Chemical reactions breaking down rocks
(B) Physical breaking of rocks
(C) Instant rock melting
(D) No chemical process
4. What does soil form from? [1]
(A) Weathered rock and organic matter
(B) Only water
(C) Only air
(D) Only sunlight
5. What is organic matter in soil called? [1]
(A) Humus
(B) Magma
(C) Lava
(D) Sediment only
6. How long does soil formation take? [1]
(A) A very long time
(B) Instantly
(C) One day
(D) One hour
7. Why is soil essential? [1]
(A) Plants need it to grow and get nutrients
(B) It has no purpose
(C) Only for decoration
(D) Only for building
8. What causes physical weathering? [1]
(A) Temperature changes and freezing water
(B) Only chemical reactions
(C) Nothing causes it
(D) Only sunlight
9. What does weathering do? [1]
(A) Breaks down rocks over time
(B) Builds up rocks
(C) Melts rocks instantly
(D) Nothing to rocks
10. What is physical weathering? [1]
(A) Breaking rocks through temperature or water
(B) Chemical reactions dissolving rocks
(C) Instant rock melting
(D) No physical process
11. What is chemical weathering? [1]
(A) Chemical reactions breaking down rocks
(B) Physical breaking of rocks
(C) Instant rock melting
(D) No chemical process
12. What does soil form from? [1]
(A) Weathered rock and organic matter
(B) Only water
(C) Only air
(D) Only sunlight
13. What is organic matter in soil called? [1]
(A) Humus
(B) Magma
(C) Lava
(D) Sediment only
14. How long does soil formation take? [1]
(A) A very long time
(B) Instantly
(C) One day
(D) One hour
15. Why is soil essential? [1]
(A) Plants need it to grow and get nutrients
(B) It has no purpose
(C) Only for decoration
(D) Only for building
16. What causes physical weathering? [1]
(A) Temperature changes and freezing water
(B) Only chemical reactions
(C) Nothing causes it
(D) Only sunlight