The nature's cleaners are

Decomposers are referred to as "nature's cleansers". Why?

Which one is nature’s cleaner

The drain cleaner Drainex contains small bits of aluminium which react with caustic soda to produce hydrogen What volume of hydrogen at 20^(@)C aand one bar will be released when 0.15 g of aluminium reacts ? .

The drain cleaner Drainex contains small bits of aluminium which react with caustic soda to produce hydrogen What volume of hydrogen at 20^(@)C aand one bar will be released when 0.15 g of aluminium reacts ? .

The drain cleaner Drainex contains small bits of aluminium which react with caustic soda to produce hydrogen What volume of hydrogen at 20^(@)C and one bar will be released when 0.15 g of aluminium reacts ? .