Rifting Sometimes Stops After an Initial Period of Faulting and Volcanism

question 16

Multiple Choice

Rifting sometimes stops after an initial period of faulting and volcanism:

• A) because the asthenosphere convection current ceases.
• B) but it is not known why such rifting ceases.
• C) because the position of other plates stops further movement.
• D) because the asthenosphere convection current is too weak to move the plates further.

---

Definitions:

Arithmetic Calculations

Mathematical operations involving numbers to perform basic functions such as addition, subtraction, multiplication, and division.

ALU

Arithmetic Logic Unit, a critical component of a CPU that handles all arithmetic and logical operations, including addition, subtraction, and logical comparisons.

Ultrabook

A full-featured but lightweight laptop computer that features a low-power processor and a solid-state drive; it tries to reduce its size and weight to extend battery life without sacrificing performance.

Permanent Storage

Data storage devices or media that retain information permanently or for extended periods without power.