they are not determined they are a leeway so that is a rough estimate so we dont know the actual seasons.
The actual most important cause of Earth's seasons is it's axis.
its earths tilt on its axis orbiting the sun
There are two things that cause it which are the earths orbit and thetilt of the earths axis.
Now your question is wrong because the earths orbit doesn't contribute to the seasons, its the 23.5 degree tilt of the earth which creates the seasons. The tilt by what i believe was created when the moon was formed, or the godly way when god tilted the earth creating the flood
The Earth rotates on its axis causing either the North or South Hemishere to tilt towards the sun which ever hemishere is tilted toward the sun it is probably spring or summer.
Tides yes, seasons no. The Earths tilt causes the seasons as we orbit the sun.
buy its rotation of the earth .its the temperature
The actual most important cause of Earth's seasons is it's axis.
rotation of earth -earth is at a tilt so sometimes some parts get more sun then others rotation around the sun -earth will be at different distances from the sun as it rotates around
the way the earth spins arund the sun causes the seasons.
Earth's rotation on its axis causes day and night. Earth's revolution around the sun causes the seasons.
the space cycle that creates canadas four seasons is earths orbiting around the sun and rotating its axis changes the angle of witch sunlight strikes diffrent parts of earth
Actually, it doesn't. The TILT of the Earth on it axis causes seasonal changes.
Seasons on Earth are caused by the tilt of the Earth's axis as it orbits around the Sun. The angle of sunlight hitting different parts of the Earth changes throughout the year, creating variations in temperature and daylight hours that we experience as seasons.
The Earth's tilt is what causes the seasons.
it creates the seasons.
When the earth spins the seasons change