Сравните следующие предложения по их структуре и содержанию. Какие из высказываний более близки друг другу по смыслу

1. Science is cumulative.
2. Science is known to be cumulative.
3. It is known that science is cumulative.

1. The earth’s crust is broken into moving plates of the lithosphere.
2. The earth’s crust is believed to be broken into moving plates of the lithosphere.
3. It is believed that the earth’s crust is broken into moving plates of the lithosphere.

1. A new oceanic crust is generated at spreading ridges.
2. A new oceanic crust is considered to be generated at spreading ridges.
3. It is considered that a new oceanic crust is generated at spreading ridges.

Ex.8.