Question

State whether the sentence is true or false: The geoid shape is not perfectly spherical.
A. True
B. False

Answer 1

Hint: The geoid is the shape of the earth. It is the irregular shape the earth would take under the effect of the gravity and spin of the Earth alone, if additional impacts such as winds and tides were lacking. This surface is stretched through the continents.

Complete Answer:
The shape of the earth is not spherical, but geoid. It is so due to the many factors that give the Earth the shape that we know of today. The diameter at the equator is longer than at the poles due to the long-term effects of the earth's rotation. In addition to that, at a minor scale, there is the geography of the surface including mountains, hills etc.
All of these large and small differences of magnitude, size, form, and mass spread of the earth lead to minor differences in the speed of gravity. These differences impact the shape of the planet's liquid environment. This model is used to measure exterior elevations with a high degree of precision. Due to factors like the above factors, the shape of the geoid is ever changing and therefore not spherical.
Hence, the correct answer is Option A: True.

Note: It must be noted that the Earth doesn’t remain to be the same shape. The Earth's shape changes because of climate events like the El Nino shift where the mass of water is stored in oceans, continents and the atmosphere.