Why do many musicians wear ear plugs during their performances even though the intensity of the sounds produced is lower than the threshold of pain?

2. what process do mrna and trna work together to complete? (3 points)

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils