Which pollutant gas is released by cudchewing cattles/ruminants ?

Options

A. `CH_(4)`
B. `CO_(2)`
C. `CO`
D. `NO_(2)`

Answer

**Step-by-Step Solution:**

1. **Identify the Type of Animals**: The question specifically mentions "cud-chewing cattle" and "ruminants." Ruminants are a specific group of animals that include cows, buffaloes, sheep, and goats.

2. **Understand the Digestive Process**: Ruminants have a unique digestive system that includes a specialized stomach with multiple compartments. This allows them to break down fibrous plant material through fermentation.

3. **Identify the Microorganisms Involved**: In the stomachs of these ruminants, there are specific microorganisms, particularly a group of archaea known as Methanogens. These microorganisms play a crucial role in the fermentation process.

4. **Determine the Gas Produced**: The Methanogens in the gut of ruminants produce methane gas (CH4) as a byproduct of the fermentation of food. This process is a natural part of their digestion.

5. **Conclude the Answer**: Therefore, the pollutant gas released by cud-chewing cattle or ruminants is **methane**.

**Final Answer**: Methane

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