Which Crosscutting Concept BEST describes the following statement? "If Earth's history were divided into 24 hours, humans arrived in the final second.
Scale, Proportion, and Quantity
O Stability and Change
O Energy and Matter
O Patterns

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Scale, proportion, and quantity

Explanation:

The scale of earths history is 24 hours and the proportion is the humans and the quantity is how little humans have been on the planet since it was created.

blue stars have the highest surface temp

stellar distances are usually expressed in light-years

the measure of a star's brightness is called magnitude

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answer: collecting information/data

reason: the student is going around and asking people questions to collect data

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