Answer to Question 1
TRUE
Answer to Question 2
Aggregation represents a whole-part relationship: a school class is an aggregate of many students and one teacher. Composition is a strong form of aggregation in which the parts exclusively belong to the composite object and do not live beyond its lifecycle: the accounting department of a company disappears the moment that the company goes out of business. A collection object is a special kind of aggregate or composite in which all parts are instances of the same class.