The inner planets mercury, venus, earth, and mars were formed by

ANSWER:

About some billion years ago, dust and gas particles began orbiting around the sun. These particles then began to stick together and formed large particles. Slowly, these particles began attracting more mass with their gravity. After millions of years, these particles became planetesimals. They started revolving around the sun in their own orbit and formed spherical shapes. This continued for another millions of years and thus planets were formed.

EXPLANATION:

The inner planets are the four planets that are closest to the sun. The inner and outer planets are separated by asteroid belts. The "inner planets are terrestrial" and rocky whereas the "outer planets" are mostly gas.

The investiture controversy began as a power struggle between pope gregory vii (1072–85) and henry iv, holy roman emperor (1056–1106).[2] a brief but significant struggle over investiture also occurred between henry i of england and pope paschal ii in the years 1103 to 1107, and the issue played a minor role in the struggles between church and state in france, as well.by undercutting the imperial power established by the salian emperors, the controversy led to nearly 50 years of civil war in germany, and the triumph of the great dukes and abbots. imperial power was finally re-established under the hohenstaufen dynasty. historian norman cantor:

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