Answer:
Classification system changes because the scientists find new evidence in their studies.
Explanation: The world is always changing and growing and dying as well as developing, so over time things change. For example, as you grow up do you stay the same? No, you notice the physical changes happening, well thats sort of like how the earth and its ways are always changing as well.
The greatest cause of the worldwide loss of species is human activity. I think
Answer:
I think it 2
Explanation:
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Hi
Answer: Its origin is not sunlight
I hope that's help !