(Q).
Q: An electric transformer connects two circuits with an iron core that becomes what? Choices: - inductive - radioactive - actuator - electromagnet A:
(A).
electromagnet

(Q).
Q: Where does most geologic activity take place? Choices: - outer core - asthenosphere - inner core - plate boundaries A:
(A).
plate boundaries

(Q).
Q: What is the name for biochemical compounds that consist of one or more chains of small molecules called amino acids? Choices: - lipids - protons - hormones - proteins A:
(A).
proteins