sidemi06 sidemi06

03-07-2020
Mathematics

contestada

Earth is approximately 4.54 * 10^9 years old. Humans are thought to have evolved around 2.5 * 10^5 years ago.
For what percentage of the age of the Earth have humans been present? Give your answer to 3 s.f

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mhanifa mhanifa

03-07-2020

Answer:

5.507*10^-7%

Step-by-step explanation:

(2.5 * 10^5)/(4.54 * 10^9)*1/100 %= 5.507*10^-7%

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