What important role do bacteria called decomposers play?

How many moles are in 43.9 l of oxygen

What is the measured amount of a product obtained from a chemical reaction?

Scientists often deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each of these numbers in an alternate form.