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marin [14]
3 years ago
10

Explain briefly George Wofan's hypothesis about the origin of the earth.​

Biology
1 answer:
Feliz [49]3 years ago
7 0

Answer:

In 1749 A.D. George Wofan, a French scientist, put forward the theory of evolution of the Earth for the first time. According to his theory the Earth along with other planets and satellites, was formed when a comet moving around the universe stroke the sun many years ago.

Explanation:

In 1775 A.D., a German philosopher Kant put forward another nebular theory, which was later improved by Laplace in 1796. According to him, there was a gaseous mass revolving around the earth. While revolving, this mass began to cool and shrinked resulting many smaller masses. These smaller masses began to move round the larger central mass. This central mass became the sun and over revolving bodies formed planet and satellites.

According to hypothesis proposed by Jeans and Jeffery in 1917 A.D., a big star orbiting round the sun finally approached it. The star with its own attraction caused a tide to be developed from the sun. As this fragmented tidal matter cooled, planets, satellites, etc. were formed and the solar system was created. In this process, the Earth was also formed.

 

Any two geological Era are as follows:

Palaeozoic era: Palaeozoic era was began from 540 million years ago and ended at 250 million years ago. In this era, the plants and animals were found tohave developed which was found from the studies of the fossils remained in sedimentary rocks. Similarly, it is also believedthat there was a change in atmosphere and whether. This era is divided into six periods.

Mesozoic era: Mesozoic era began from 250 million years ago and ended at 65.5 million years ago. In this era, different types of hills and mountains were formed. It is supposed that the vital conditions for the survival of life on land, water and air were formed. This era is divided into three periods.

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Answer;

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Explanation;

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2 years ago
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7 0
3 years ago
The frontal lobes also include the primary ____________ which controls voluntary motor functions.
lakkis [162]

Answer:

The correct answer will be- primary motor cortex

Explanation:

The motor cortex is the portion of the brain present in the precentral gyrus of the frontal lobe of the brain.  The motor cortex is thought to be involved in the planning actions and control voluntary actions.

The motor cortex is divided into three regions: premotor cortex, primary motor cortex  and supplementary motor area.

The primary motor cortex is the region of the motor cortex which controls the voluntary movements in the human body by generating the impulse.

Thus, the primary motor cortex is the correct answer.

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Would the surface temperature of white dwarf stars be higher or lower than red supergiants?
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3 years ago
Read 2 more answers
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