World health organization ranking of the leading causes of disability in the u. s. and canada in terms of the total number of years lost to illness, disability or premature death places neuropsychiatric disorders at what level?

ANSWER:

World Health Organization places neuropsychiatric disorders at 'First' level.

EXPLANATION:

The WHO has listed the probable causes of disability in the U.S. and Canada which places neuropsychiatric disorders in the 'first place'. Mental illness of a person is considered as a root cause  for an estimated 59% of the economic costs obtained from injury or illness. This leads to 'productivity loss' in the US. Canadian university has reported that absentees for sessions due to psychological reasons had increased 400% from 1993 to 1999. The same survey reveals that in many developed countries, '35% to 45%' of 'absenteeism' from work is due to 'mental health problems'.

Ibelieve the answer is c.

Your answer is  d.)relationship between pressure and air volume and led to the understanding of how respiration works