Answer:so many disadvantages....
Explanation:
Disadvantages...if one Is short on cash....or no means of revenue generation then cohort study is going to be a big disadvantage cos it is expensive to carry out...
Disadvantages...it is time consuming
And if the sample size is large cohort study may lead to error
Advantages.... it is very easy to understand and use
Answer:
Variety.
Explanation:
A balanced diet may be defined as the diet that contains inadequate amount of carbohydrates, fats, proteins, vitamins and minerals. The balanced diet is important for all the living organisms.
The balanced diet provide provide calories that are required for the organisms. Although Carl diet has high levels of nutrients but the meal is same. This diet is nutritious but lacks the variety of the diet. The diet variety is also important for the balanced diet.
Thus, the answer is variety.
