Answer:
I would have to say c I have learned this type of stuff in the past
What percent of potassium-40 remains undecayed in a rock that is 3.9 billion years old? The 3.9 billion year old rock has undergone three half-lives (3.9 divided by 1.3 = 3). After 3 half-lives, 12.5% of the potassium-40 remains undecayed.
He had no proof to back up this theory and was rejected by the scientific community. People only found evidence after he died. Please make me brainliest
