Earth's orbit is an ellipse, but not by very much. The eccentricity of earth's orbit (the measure that relates to the degree of ellipticity) is .016710219, which you can compare to the eccentricity of Pluto at .24880766. Pluto's orbit is very elliptical at roughtly .25. A perfect circle has a eccentricity of zero. Eccentricity of orbits can be anything from zero to less than one. If Earth's orbit were highly elliptical, it would probably interfere with orbits of other planets, Mars in particular. This would first of all call into question the definition of Earth and Mars as planets. It would also change the lengths of the seasons in some unpredicatable ways (some seasons would be much longer than others), which would have some serious effects on living things and stability of temperature.
Pretty much the way it is now. The Earth's orbit is - as are ALL orbits - an ellipse. But Earth's orbit has a very low eccentricity, which means that it is ALMOST circular. The difference probably isn't significant.
there would be no seasons and no temperature change
It wouldn't knock us off our feet, unless it was a lot faster.If the Earth rotated faster, then it would probably mess up our orbit, and we would slowly spin into another heavenly body in space.
The only planet in that category is the Earth, the planet most people live on. How does the orbit affect life? without the orbit there is no life on Earth, so it's fundamental really. The orbit keeps our temperature within narrow band so that life can exist and flourish. Without an orbit the Earth would travel off into outer space and the temperature would quickly descend below -200 degrees everywhere.
if our planet Earth had a larger orbit than it does today, the temperature would be dramatically different and most life on the planet would most likely die out from the extreme cold.
If the moon was not in orbit around the Earth, the tilt of the Earth's axis with respect to the plane of the ecliptic would be unstable. As a result, seasons and climate would be unstable, and life as we know it on Earth would change or disappear.
seasonal change made life possible on the earth by energy from sun heats this layer; and the surface below ; causing expansion of the air.
you would think about the earths sex life
It wouldn't knock us off our feet, unless it was a lot faster.If the Earth rotated faster, then it would probably mess up our orbit, and we would slowly spin into another heavenly body in space.
The only planet in that category is the Earth, the planet most people live on. How does the orbit affect life? without the orbit there is no life on Earth, so it's fundamental really. The orbit keeps our temperature within narrow band so that life can exist and flourish. Without an orbit the Earth would travel off into outer space and the temperature would quickly descend below -200 degrees everywhere.
Circular key is a part of life
No, what the hell would bring you to ask that kind of question?
Earth's orbit is not highly elliptical; it has a modest eccentricity of 0.0167. An eccentricity of zero defines a perfectly circular orbit. Pluto's eccentricity is 0.248, and Mercury's is 0.2056. Neptune's largest moon, Triton, has as perfectly circular an orbit as can currently be measured. See link for more.
importance of circular function
No. There also would be very little chance life would exist on the planet.
If there was no orbit the Earth would be floating around in space and there would be no life on it. The Sun's energy creates and sustain all forms of life on the planet.
if our planet Earth had a larger orbit than it does today, the temperature would be dramatically different and most life on the planet would most likely die out from the extreme cold.
If the moon was not in orbit around the Earth, the tilt of the Earth's axis with respect to the plane of the ecliptic would be unstable. As a result, seasons and climate would be unstable, and life as we know it on Earth would change or disappear.
Wheels are one group of circular shapes without which you would not get very far!