It has been linked to lung cancer.
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Answer:
Sedimentary rocks are deposited one on top of another. Therefore, the youngest layers are found at the top, and the oldest layers are found at the bottom of the sequence.
Answer: precision and accuracy
Explanation:
Take for example a basketball. The goal is to put the ball on the hoop. By doing that you are accurate. But let's say you hit a certain part of the rim 10 times. That means you're really precise in hitting the exact spot.