Question

When the amount earned on a deposit has become part of the principal at the end of a specified time period the concept is called

Answer 1

Compound interest

Step-by-step explanation:

Compound interest is a method of measuring interest by which interest is applied to the principal amount over time. You not only earn interest on the principal amount but also collect interest on your interest.

This tends to happen because you save your interest, rather than withdraw it

Hence, the compound interest is the correct answer