Which among the following are included in Denudation Process?
(i) Weathering
(ii) Erosion
(iii) Deposition

Question

Which among the following are included in Denudation Process? 
(i) Weathering 
(ii) Erosion 
(iii) Deposition

Accepted Answer

Option 2, "(i) and (ii) only," is the correct answer because denudation is the overall process of wearing down the Earth's surface. This process primarily involves two key actions:

*   **Weathering:** This is the breakdown of rocks, soils, and minerals through direct contact with the Earth's atmosphere. It weakens the materials, making them susceptible to erosion.

*   **Erosion:** This is the process by which weathered material is transported away by agents like water, wind, ice, or gravity.

**Why other options are incorrect:**

*   **Option 1: (i), (ii) and (iii):** While weathering and erosion are core components of denudation, deposition is the *result* of erosion. Deposition is the laying down of eroded material in a new location. It's the *opposite* of denudation, as it builds up landforms rather than wearing them down. Therefore, including deposition makes this option incorrect.

*   **Option 3: (ii) and (iii) only:** Erosion is a key part of denudation, and deposition is the result of erosion. However, weathering is a crucial *precursor* to erosion. Without weathering to break down the rocks and materials, erosion would be significantly less effective. Therefore, excluding weathering makes this option incorrect.

*   **Option 4: (i) and (iii) only:** Weathering is a key part of denudation, and deposition is the result of erosion. However, erosion is the process by which weathered material is transported away by agents like water, wind, ice, or gravity. Therefore, excluding erosion makes this option incorrect.

In summary, denudation is the process of wearing down the Earth's surface through weathering and erosion. Deposition is a separate process that builds up landforms. Therefore, only weathering and erosion are included in the denudation process, making Option 2 the correct answer.