If the Area Shown in This Figure Is 240 Kilometers

question 97

Multiple Choice

If the area shown in this figure is 240 kilometers wide, and the oldest crest is 4 million years old, what was the approximate rate of seafloor spreading across this ridge?

• A) 0.24 kilometers per million years
• B) 2.4 kilometers per million years
• C) 60 kilometers per million years
• D) 240 kilometers per million years
• E) 960 kilometers per million years

---

Definitions:

Fixed Amount

A specified sum of money that does not vary or change under certain conditions or over a certain period of time.

Hold

To maintain possession or control of something, or to defer a decision or action until further notice or information is received.

Funds

Financial resources set aside for a specific purpose, often pooled together from multiple sources and managed to achieve a specific investment goal.

Collecting

The action or hobby of gathering items of a particular type, often of cultural, historical, or financial value.