Theory of Isostasy

Options:

1. In balance
2. Earth's movements
3. Geological formations
4. Mechanical stability

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Options:

1. German geologist Dutton
2. American geologist Dutton
3. British geologist W ooldridge
4. Russian geologist Morgan

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Options:

1. The earth's rotation slows down
2. There are violent earth movements and tectonic events
3. The temperature of the earth's surface increases
4. The atmosphere becomes unstable

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Options:

1. The origin of life on earth
2. The composition of the earth's atmosphere
3. The mechanical stability of relief features on the earth's surface
4. The formation of minerals and rocks

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Options:

1. The towering volcanic peak of Chimborazo was attracting the plumb line as it should have done.
2. The gravitational attraction of the Andes was much larger than expecte
3. The gravitational attraction of the Andes was much smaller than expecte
4. The difference of latitude of Kalianpur and Kaliana was determined by both direct triangulation method and astronomical metho

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Options:

1. Pierre Bouguer
2. Sir George Everest
3. Archdeacon Pratt
4. None of the above

Correct Answer

Options:

1. Sir George Everest
2. Archdeacon Pratt
3. Pierre Bouguer
4. None of the above

Correct Answer

Options:

1. Sir George Everest
2. Archdeacon Pratt
3. Pierre Bouguer
4. None of the above

Correct Answer

Options:

1. The Himalayas are hollow and composed of bubbles
2. The density of the rocks of the mountains must be relatively low down to considerable depth
3. The rocks of the Himalayas are of low density in themselves
4. The Himalayas have a high density

Correct Answer

Options:

1. The Himalayas are floating on top of a level surface of denser material.
2. The Himalayas are hollow on the inside.
3. The Himalayas are floating in denser glassy magm
4. For every 1 part of the Himalayas above the substratum, there must be 9 parts below in lighter material.

Correct Answer

Options:

1. Joly believed that for every 1 part above the upper level of the substratum, there were 8 parts submerged, while Airy believed it was 9 parts submerge
2. Joly believed that the Himalayas were hollow on the inside, while Airy did not.
3. Joly believed that the Himalayas were floating on top of a level surface of denser material, while Airy believed they were floating in denser glassy magm
4. Joly did not believe in the principle of floatation.

Correct Answer

Options:

1. The density of the mountains is greater than the density of the plains.
2. The density of the plains is greater than the density of the mountains.
3. The density of different landforms is the same regardless of their height or depth.
4. The density of the crust and the substratum is the same.

Correct Answer

Options:

1. He took several pieces of iron of varying lengths and put them in a basin full of mercury.
2. He took several pieces of wood of varying lengths and put them in a basin full of water.
3. He used mathematical calculations to prove his concept.
4. He did not demonstrate his concept.

Correct Answer

Options:

1. They are hollow.
2. They are made of denser material.
3. The excess weight is compensated by lighter materials below.
4. They are floating in water.

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Options:

1. 1
2. 1
3. 8
4. 9

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Options:

1. Its greater part would be submerged in the substratum if it is larger.
2. Its smaller part would be submerged in the substratum if it is lower.
3. Both A and
4. Neither A nor

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1. Varies with depth.
2. Uniform with varying thickness.
3. Uniform with uniform thickness.
4. Increases with depth.

Correct Answer

Options:

1. Took pieces of wood and put them in a basin of water.
2. Took pieces of iron and put them in a basin of mercury.
3. Both A and
4. None of the above.

Correct Answer

Options:

1. It does not account for the temperature increase with depth.
2. It assumes that every upstanding part must have a root below in accordance with its height.
3. It assumes that the density of the earth's crust varies with depth.
4. It assumes that the Himalayas are hollow.

Correct Answer

Options:

1. The average density of the Himalayas.
2. The gravitational force of the Himalayas.
3. The difference in height between the two locations.
4. The average density of the neighboring plains.

Correct Answer