The Earth's equatorial region bulges outward, but the Earth flattens slightly towards the polar regions due to the:
Earth's rotational force
The Earth's equatorial bulge and polar flattening result from its rotation: the centrifugal effect of the daily spin about its own axis is strongest at the equator, where the tangential rotational speed is greatest, pushing mass outward there, while it has no effect at the poles, which lie on the axis itself and therefore flatten slightly. This is why the Earth is an oblate spheroid rather than a perfect sphere. Hence, the cause is the Earth's rotational force.
Similar Questions
The process of Podsolization is predominantly found in:
Which of the following statements regarding Barchan is/are correct?
1. It is a crescent shaped mound of sand, which is deposited by the wind blowing constantly from one direction in a desert.
2. The windward side has a convex steep slope with maximum height at the centre.
3. Two ends of Barchan are called horns and point opposite to the direction the wind blows.
Select the answer using the code given below:
Which one of the following factors does not affect the distribution of groundwater ?
Which of the following statements regarding earthquakes is/are correct?
1. The point on the Earth's surface directly above the focus is called the epicentre of the earthquake.
2. Earthquakes generate Primary and Secondary waves that radiate outward from the earthquake focus.
3. Deep-focus earthquakes are likely to cause more damage than shallow-focus earthquakes.
Select the answer using the code given below:
Identify the land biome on the basis of the given characteristics:
1. Their climates are characterised by high rainfall and temperatures that vary from cold to mild.
2. These forests contain primarily deciduous trees - including maple, oak, hickory and beechwood.
3. Raccoons, opossums, bats and squirrels are found in the trees.
Select the correct land biome from the options given below:
Which one of the following is not an igneous red rock?
While travelling to a hilly region, you notice a massive boulder, which was loosened by heavy rains and moved downhill. This has resulted due to which of the following processes?
1. Mass wasting
2. Erosion
3. Weathering
Select the correct answer using the code given below.Consider the following characteristics of a grassland :
1. An extensive area of mid latitude grasslands are devoid of trees and shrubs.
2. The climate is characterised by hot summers, cold winters and relatively low rainfall occurring mainly in spring and summer.
3. In humid parts, grasses grow to a meter or more in height.
On the basis of the above characteristics, select the correct grassland from the options given below:
Point of Origin of Earthquake Wave is known as
A large body of magmatic material that cools in the deeper depth of the Earth's crust and develops in the form of large domes is known as
Important Questions from Geomorphology
Asthenosphere is:
The discontinuity present in earth's interior between lower mantle and outer core is called _________.
Which of the following igneous rocks contain silica in excess of 65%?
Which type of rocks are found in Lafagarh and Podi Uprora ?
Part of Gondwana land is
