The Rule of 70 States That

question 64

Multiple Choice

The rule of 70 states that:

• A) the average score on standardized tests is normally distributed with a mean of 70 and a standard deviation of 10.
• B) everyone should retire by age 70.
• C) the number of years for a variable to double equals 70 divided by its annual growth rate.
• D) Social Security benefits should increase when people reach 70.

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Definitions:

Plate Boundary

The edges where two tectonic plates meet, which can be categorized into convergent, divergent, or transform boundaries based on their movement relative to each other.

Spreading Center

Divergent boundary where two oceanic plates move apart (diverge).

Transform Fault

A geological fault where the movement of the Earth's crust is predominantly horizontal, often leading to earthquakes in these regions.

Subduction Zone

A region of the Earth's crust where one tectonic plate moves under another, often associated with volcanic activity and earthquakes.