Which best explains why openness is important to the progress of science? It aids in the analysis of complicated numerical data.
It aids in understanding technical papers in academic journals.
It allows scientists to consider ideas that contradict their models or theories.
It allows scientists to design novel experiments that may be difficult to carry out.

answer; i believe that the correct answer is (b) melosis; plz check first.good luck

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.