What statement best describes the role of decomposer in an ecosystem?

What are the uses for the alkali metals? What contains the replicated DNA of each individual chromosome? What reaction does fat or oil have on brown wrapping paper? Is 6'1 260 lbs normal for a 12 yr old boy? Crushed soda can physical or chemical change? How can we protect ecology? How do you know how tall you will be when you grow up? What is purple toe syndrome? The process where squashed together grains of rock become stuck together? Is a fern an autotroph? Which of these is capable of moving quickly in response to its environment? How do you detect metals in an alloy? How is snow removed from roads during heavy snow falls at hill stations? Why is a 15 pound propaine tank different from a 20 pound? What are the advantages of using brewers yeast to produce pyrethrins? How meiosis leads to the sorting and recombining of genes? How do you make 100mm from 5M solution? What earth phase do you see when you see a waxing gibbous phase on the moon? How can you prevent having a overloaded circuit? What is one way that Mercury and Venus differ?