Answer:
True.
Explanation:
All humans rely on other things to survive, stay clean,, ect
Answer:
Concrete operational thinker.
Explanation:
Dee has now become a concrete operational thinker because she has now grown to think more rationally.
This stage by Piaget is the 3rd in his theory of cognitive development. Dee is now mature enough to use logical reasoning. From what we can see, her thinking is now more concrete and sophisticated. But she can only apply this logic to physical objects.
The entity integrity rule states that a primary key attribute can be null. Thus the statement is false.
<h3>What is an entity?</h3>
An entity is refer to any object that exists in reality. These entities are Independent in nature. Each row in a table should be a distinct entity, which is ensured by entity integrity.
The entity integrity rule states that a primary key attribute can not be null as it shows unique characteristics of an entity.No primary key value can be null according to the entity integrity constraint because it is needed to identify specific attribute values in relation.
Therefore, the statement is False.
learn more about entity integrity, here:
brainly.com/question/19593791
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North America. NAFTA stands for north american federal trade agreement.
