A) A sound wave
The other 3 create mutations, are cells are hit by sound waves all the time and experience no mutations because of it
D, A
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Answer:
I believe that the protists were the first organisms on earth. And the other 5 kingdoms then came from the protists.
I think that's it! :)
If a plant uses up all of the carbon dioxide this would just keep makeing
oxygen or its known as photosynthesis. I'm NOT a 100% sure If this is
is the correct answer or not.