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What caused this obliquity (axial tilt) is still not clearly understood - and probably never will be.
During the early periods of the Earths formation, slight differences in the distribution of matter may well have caused irregularities in the balance of the planet, but this is unlikely to have caused such a large tilt.
The most likely explanation, is that early in the formation of the Earth, it was struck by a rogue planet - called Theia. (About the size of Mars). It struck, at an angle of about 45 degrees, (Debris from this collision made the Moon). This collision would almost certainly have pushed its obliquity (axial tilt) away from almost near vertical.
We only have to look at Mercury and Venus to see that their tilt is almost near to vertical,
It also seems, that the Moon also keeps the Earths tilt fairly constant. Without the Moon, the tilt would alter quite considerably over time.
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The seasons are caused by the tilt of the Earth's axis combined with its movement around the?
The seasons are caused by the tilt of the Earth's axis combined with its movement around the SUN.
Are the seasons caused by the tilt of the earth's axis or the distance from the sun?
By the tilt of Earth's axis. The distance from the Sun may affect temperatures, but the effect is much smaller than that of the tilt of Earth's axis.
Why is knowing the tilt of the earth's axis important?
The tilt of the Earth's axis is why there are seasons. =)
Why is the temperature cooler in the winter and hotter in the summer?
tilt of the earth on its axis. tilt of the earth on its axis.
What is the tilt on earth s axis?
The earth spins on a 21* axis
The seasons are caused by the tilt of the Earth's axis combined with its movement around the?
The seasons are caused by the tilt of the Earth's axis combined with its movement around the SUN.
If Earth had no tilt how would that affect the seasons?
No tilt = no seasons. Seasons are caused by the tilt of the Earth's axis.
Are Earth's seasons caused by the tilt of Earth's axis?
yes they are
Are seasons caused by the tilt of the earth's axis '?
Yes.
What is caused on earth due to the tilt of the axis?
Seasons.
Are the seasons caused by the tilt of the earth's axis or the distance from the sun?
By the tilt of Earth's axis. The distance from the Sun may affect temperatures, but the effect is much smaller than that of the tilt of Earth's axis.
Seasonal variations in Earth's climate are caused by?
Earth's tilt
What makes a place on earth hot or cold?
It is seasons caused, by Earth's tilt on its axis.
Are the seasons caused by the movement of Earth's axis?
The seasons are cause by the tilt of the axis of the Earth. The rotation about axis itself moves very little
Why revolution is called annual movement of the earth?
It is caused by the earths tilt on its axis.
Who is the reason for winter?
The seasons - this includes winter - are caused by the tilt of Earth's axis.
Change of season caused by rotation of earth or revolution of earth or revolution of sun?
Change of seasons is caused by the tilt of the earth's axis.
