I need help asap this is due today

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

Are these strong bases, neutral, strong acids, weak acids or weak base household bleach (ph=12.6) fluid in a car's battery (ph of less than 1.0) milk (ph=6.7) stomach contents (ph=2.2) pure water (ph=7)

The instructions for making proteins come originally from