Some students measure the mass of a small pile of leaves before and after the leaves decompose. Each time the students measure the mass, they place a container with the decomposing leaves on a balance. Before recording the mass of the leaves, the students must do which of the following?
A Subtract the mass of the container
B Add leaves from other plants to the container
C Allow the leaves to settle in the container for a few days
D Use a metric ruler to measure the volume of the container
PLEASE HELP ME! GOD BLESS YOU!!
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