Answer:
Primary key retains its uniqueness even after you remove some of the fields.
Explanation:
I am assuming that this question is related to database. Therefore, I am answering it according to database context.
In database, you can have multiple rows and columns. Each column shows a specific attribute while each row plots the data according to the attributes. However, there is the first column of each of main table that has unique set of values. It is called the Primary Key. Some key features of primary key are:
- It always contains the unique value.
- Its value cannot be null.
- A table can have at max one primary key.
- It can be the combination of multiple columns but it must be unique.
Therefore, the primary key has the ability to retain its uniqueness even after you remove some of the fields.
Your correct answer would be Legend.
answer choice is B.
The answer is Every six months
A battery acts as the brain of a car and is used to power almost everything. It can last up to five years. However, this lifespan will depend on how well the battery is maintained and the type of weather conditions you live in. Aim to check your car battery at least twice a year. Actually, it is best to check your battery regularly and not to wait for your mechanic to test your battery during routine servicing.
You cant headers are applied to every page. Apply your header under the header
Answer:
This is the second question like this I've seen. They aren't the greatest.
Explanation:
The question is not good. The answer would be option a, Transport even though it doesn't make a whole lot of sense when you really go into detail.
It could also be option d, Application but I think they're going for the first.
