Question

1. which planets day is about equal to one day on earth?

Explanation:

To determine which planet has a day (rotation period) approximately equal to Earth's day, we refer to astronomical knowledge. Earth's rotational period (a day) is about 24 hours. Mars has a rotational period of approximately 24.6 hours, which is very close to Earth's 24 - hour day. Other planets have significantly different rotational periods (e.g., Venus has a very long rotation period, Jupiter is much faster, etc.).

Answer:

Mars (Mars has a rotational period of about 24.6 hours, which is approximately equal to one day on Earth)