Question
Which of the following is/are the applied forces in mechanical weathering process? 1. Gravitational force 2. Expansion force 3. Force due to water pressure Select the answer using the code given below:
NDA
General Ability
General Studies
2025
NDA 2025 (Phase 1)
NDA General Ability Question (2025) — Solution
Options
- A. 1 only
- B. 1 and 2 only
- C. 2 and 3 only
- D. 1, 2 and 3
Answer
D. 1, 2 and 3
Step-by-step solution
Mechanical weathering processes depend on applied forces which cause the physical breakdown of rocks without changing their chemical composition. These applied forces include: 1. Gravitational forces such as overburden pressure, load, and shearing stress. 2. Expansion forces due to temperature changes, crystal growth, or animal activity. 3. Water pressures controlled by wetting and drying cycles. Hence, all the given forces are applied forces in the mechanical weathering process. Answer: 1, 2 and 3
Related: General Ability — General Studies · All PYQ Banks