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Three way's California changed because the gold rush was, California gained population, causing a permanent change in government. Also, San Francisco became the center of banking, shipping, trade, and manufacturing. Most important, because of California's new grand population, California became a free state in 1850. The Gold Rush significantly influenced the history of California and the United States. It created a lasting impact by propelling significant industrial and agricultural development and helped shape the course of California's development by spurring its economic growth and facilitating its transition to statehood.
Explanation:
The correct answer is:
An understanding of the number and size of leftover planetesimals in the early solar system.
The giant-impact hypothesis proposes that the Moon was created out of what was left of a collision between Earth and an astronomical body the size of Mars, around 4.5 billion years ago, in the Hadean eon. The heavy bombardment was a period when leftover planetesimals hit planets during the solar system's first hundred million years.