Describe the role of the ribosome in the cell

Ribosomes are what make up proteins (the protein builders). There are a lot of ribosomes in the cytoplasm.

Explanation: Ribosomes connect mRNA(messenger RNA) and tRNA (transfer RNA) to synthesize polypeptides and proteins. Proteins are made up of building blocks amino acids. Polypeptides are chains of amino acids and portions of proteins in cells.

(Also, ribosomes are usually the small dots that you see in a cell diagram)
(Hope this helps :) )

Answer : romans built laws to manage the pollution which was lead by smoke produced by the factories.

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.

As what he you go get the hot dog ; )