Question

Name the sources of information about forces operating inside the earth

Answer 1

The earth's radius is  6370 km this makes it impossible to collect first hand information through collection of data.
Some of the information we have about the interior of earth's are estimates and some are based on inferences. On the other hand, some of the information is acquired by carrying out direct observation and analysis of material.

The Sources Of Information Are:

1. Direct Sources
- Rocks from mining
- Deep ocean drilling project and integrated ocean drilling project e.g the Kola, in Arctic Ocean which is the deepest drill
-Volcanic eruption

2. Indirect Sources
- Analysis of properties of matter e.g during mining activity, analysis of density, temperature, pressure
- Analysis of meteors which an indirect resource since its not from the earth. Meteors are analyzed have material from other planets that are similar or same to ours
- Gravitation force, Seismic activity and Magnetic filed are also indirect source

Answer 2

Explanation:From the study of materials found inside the earth, scientists have come to know about materials that constitute the interior of the earth.

Hope it will help you