The length of a day on _______________ is approximately 16 hours.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Neptune.
Neptune, the eighth planet from the Sun, is a gas giant known for its striking blue color due to methane in its atmosphere. Despite its immense size, Neptune has a relatively short day compared to Earth. A day on Neptune, also referred to as its rotation period, lasts about 16 hours and 6 minutes. This is because Neptune has a fast rotation speed, completing one full rotation in just over 16 hours.