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The First European to Make Systematic Observations of the Heavens

question 20

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The first European to make systematic observations of the heavens by telescope was


Definitions:

Time Equivalency

The concept of dating geological layers or events as being the same age based on the evidence of similar rocks, fossils, or geologic features.

Geology

A field of study focused on understanding the Earth's physical makeup, its history, and the natural processes that influence its structure and composition.

Isotopic Ages

Measures the time elapsed since a particular mineral or rock formed, based on the decay rates of radioactive isotopes.

Billion Years

A period of time equal to 1,000 million years, often used in geological and astronomical contexts to describe the age of Earth or the universe.

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