Give Reason:
1.Balanced diet is necessary for maintaining health body.
2.Health of an organis depends upon the surrounding environmental conditions.
1) Balance diet comprises of all dietary requirement that is needed for proper and healthy development of an individual. If any nutrient of this balance diet is missing in his/her regular diet then he/she may become sick and unhealthy because of deficiency of that nutrient. So if a person is continuously taking proper and balance diet then he will be healthy.
2) If surrounding environment of an organism is not clean and prone to many pathogens like bacteria, virus etc then he/she may become ill and certain disease can be developed beside he/she is taking a proper diet. So surrounding environment always matters with a proper and healthy diet for an healthy development of an organism.