Nutrition and fortification comes under which category

Which normal form removes partial dependency?

In an E-R diagram, a double rectangle represents a:

Query optimization heuristics often include:

What will be the output of the following Python code:

a=[1,2,3,4,5,6]

print(a[-1],a[-1:],a[:-1])

A "diamond" shape in an E-R Diagram typically represents a:

Which SQL command is used to retrieve data from a table?

Which stage involves evaluating the project's practicality, cost, and resources before proceeding further?

Which normal form ensures that every determinant is a candidate key?

Which of the following ACID properties ensures that either all operations within a transaction are completed successfully, or none are?

Consider the following pseudo-code: 

 ```

    function calculate(arr):

        sum = 0