Question

Differ DEPENDENT & INDEPENDENT sources abstraction!

Answer 1

Sources of what? In what context is this question being asked?

Answer 2

Independent Sources are voltage sources or current sources which have a constant voltage or constant current. And this doesn't depend on any variable of the circuit.
Dependent sources are voltage sources or current sources which depends on either a voltage or a current in the circuit.
There are several types of dependent sources:
1) Voltage Controlled Voltage source (VCVS)
2) Current Controlled Voltage source(CCVS)
3) Voltage Controlled Current source (VCCS)
4) Current Controlled Current source(CCCS)