The spinning motion of the Earth causes it to flatten slightly at the poles and bulge at the equator. This flattening, known as oblateness, is a result of the centrifugal force counteracting the gravitational force at the equator. The shape of the Earth is an oblate spheroid due to this flattening.
The difference between the Earth's polar circumference and equatorial circumference, known as the flattening of the Earth, indicates that the Earth is an oblate spheroid. This means that the Earth is slightly flattened at the poles and bulges at the equator, making it not a perfect sphere.
In polar areas, solar radiation strikes Earth at a low angle, close to the horizon. This angle causes the sunlight to be more spread out and less concentrated, resulting in lower energy input compared to equatorial regions.
While the Earth's shape is generally spherical in nature, the centrifugal force of the Earth's rotation has caused a slight flattening. The result is a planetary shape that has a greater planar circumference than its polar circumference.
The areas are called the "polar regions" or the "polar latitudes."
Two, north polar ice cap and south polar ice cap , the arctic and the antarctic
Saturn has the greatest polar flattening of any planet in our solar system. Its oblateness, or polar flattening, is due to its rapid rotation, causing it to bulge at the equator and flatten at the poles.
Polar flattening, also known as oblateness, refers to the deviation of a planet's shape from a perfect sphere, resulting in a slightly flattened appearance at the poles compared to the equator. This occurs due to centrifugal forces caused by the planet's rotation. For example, Earth is an oblate spheroid with a polar flattening of about 0.00335.
The approximate flattening of the Earth, also known as its oblateness, is about 1/298.257. This means that the Earth's equatorial radius is about 21 kilometers larger than its polar radius, resulting in a slight bulge at the equator. This flattening is a consequence of the Earth's rotation and the resulting centrifugal force. Overall, the Earth's shape is best described as an oblate spheroid.
Polar flattening refers to the phenomenon where a planet's shape is not a perfect sphere but is instead slightly compressed at the poles and bulging at the equator due to its rotation. Saturn exhibits significant polar flattening because it has a fast rotation rate and a low density, leading to a pronounced equatorial bulge. This flattening is unique among planets in the solar system, as Saturn's equatorial diameter is markedly larger than its polar diameter, making it one of the most oblate planets. The degree of this flattening contributes to Saturn's distinctive appearance and is a key factor in its atmospheric dynamics.
The rotation of the planet.
geonomic?
used by spinning motion of the earth around its axis passing through the poles...the force being max at the equator...since at tym of formation, earth was in fluid state, the force of cohesion was small & could not balance the centrifugal force...hence it bulged out at the equator
The difference between the Earth's polar circumference and equatorial circumference, known as the flattening of the Earth, indicates that the Earth is an oblate spheroid. This means that the Earth is slightly flattened at the poles and bulges at the equator, making it not a perfect sphere.
The Earth has seasons because it polar axis is tilted relative to its orbit.
Nearly spherical, with some polar flattening for the large gas giants which spin quickly.
Polar easterlies are winds that move in near the north and south poles at 60 to 90 degrees (north or south). They are next to the prevailing westerlies. The polar easterlies are cold and windy, while the prevailing westerlies are hot and dry. The rotation of the Earth and the Sun's heat causes Polar easterlies.
No "event" causes that.The continuous rotation of the planet on its polar axis it responsible for the progression of day and night.