10.If urea (46 - 0 - 0) cost $480.00 per ton and ammonium sulfate (21 - 0 - 0) cost $265.00 per ton , which fertilizer would be the most economical source of nitrogen ? Explain .

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.v

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answer: collecting information/data

reason: the student is going around and asking people questions to collect data

i hope this

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.

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.