On which planet one day is longer than its year?

Options

A. Saturn
B. Neptune
C. Venus
D. Jupiter

Explanation

To determine which planet has a day longer than its year, we need to understand the concepts of rotation and revolution.

### Step-by-Step Solution:

1. **Understanding Rotation and Revolution**:
- A planet rotates on its own axis, which defines a day.
- A planet revolves around the sun, which defines a year.

2. **Identifying the Time for a Day and a Year**:
- We need to find a planet where the time taken for one complete rotation (one day) is greater than the time taken for one complete revolution (one year).

3. **Analyzing the Options**:
- We can analyze the known planets in our solar system to find the one that meets this criterion.

4. **Calculating Venus**:
- For Venus:
- One day (rotation period) = 243 Earth days
- One year (revolution period) = 225 Earth days

5. **Comparison**:
- Since 243 days (day) > 225 days (year), Venus is the planet where one day is longer than its year.

6. **Conclusion**:
- Therefore, the answer to the question is Venus.

### Final Answer:
The planet on which one day is longer than its year is **Venus**.

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