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A year on Earth is about 365.24 days long. Most years are 365 days, and leap years have 366 days.

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What was the length of the day in the precambrian time?

In the Precambrian time, the length of a day was shorter than it is now. Due to the gravitational interactions between the Earth, Moon, and other celestial bodies, the rotation of the Earth has gradually slowed over billions of years, leading to longer days. However, the exact length of a day in the Precambrian era is difficult to determine precisely.


What are the reasons for variation in the length of days and night on the earth?

Variation in the length of days and nights on Earth is primarily caused by the tilt of the Earth's axis and its orbit around the sun. This tilt creates different angles at which sunlight reaches different parts of the Earth, leading to changes in day length. Additionally, the Earth's elliptical orbit means that the speed at which it moves around the sun varies, affecting day length.


What is determined by the earth's revolution and angle of tilt?

The Earth's revolution around the Sun determines the length of the year and the changing seasons. The angle of tilt (23.5 degrees) causes different parts of the Earth to receive varying amounts of sunlight, leading to the seasonal changes.


How long does mercury Venus Earth Mars Jupiter Saturn Uranus Neptune and Pluto all take to orbit the sun?

Mercury takes about 0.24 earth years to complete one revolution around the sun. Venus takes about 0.62 earth years to complete one revolution around the sun. Earth takes about 1 earth years to complete one revolution around the sun. Mars takes about 1.88 earth years to complete one revolution around the sun. Jupiter takes about 11.86 earth years to complete one revolution around the sun. Saturn takes about 29.46 earth years to complete one revolution around the sun. Uranus takes about 84.01 earth years to complete one revolution around the sun. Neptune takes about 164.8 earth years to complete one revolution around the sun. Pluto takes about 248 earth years to complete one revolution around the sun.


Are the Earth's eras the same length?

No, the Earth's eras are not the same length. They vary in duration. The eras are typically distinguished by significant geological and paleontological changes that have occurred during each period of time.