By dating the rocks in the ever-changing crust, as well as neighbors such as the moon and visiting meteorites, scientists have calculated that Earth is 4.54 billion years old, with an error range of 50 million years.
Answer:
F1 and F2 Generations
The offspring of the P generation are called the F1 (for filial, or “offspring”) generation.
Answer:
3:1
Explanation:
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C. Vegetation
because even though cows are important, all life is and not just that species and then cars and factories are unnatural and would not be critical for the carbon cycle in nature.
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