Name the nitrogenous waste excreted in larval and adult stages of frog respectively.

Explanation

### Step-by-Step Solution:

1. **Identify the Larval Stage of Frog**: The larval stage of a frog is commonly known as a tadpole.

2. **Determine the Nitrogenous Waste in Tadpoles**: Tadpoles are aquatic and have fish-like characteristics. They excrete nitrogenous waste primarily in the form of ammonia. This is because ammonia is highly soluble in water and can be easily excreted by aquatic organisms.

3. **Identify the Adult Stage of Frog**: The adult frog is capable of living in both aquatic and terrestrial environments, which distinguishes it from the tadpole.

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