Which two classes are used by Flex to implement effects?

Which among the following is a TweenEffect event?

Which among the following elements are used to create a Form?

Which among the following is true about MXML Application?

A data adapter is responsible for updating the persistent data store in a manner appropriate to the specific data store type, for the Java adapter. State whether the statement is true or false.

A mask effect is any effect that is a subclass of the MaskEffect class, which includes the wipe effects and the Iris effect. State whether the statement is true or false.