Earthquakes That Originate at Depths Greater Than 100 Km Are

question 7

Multiple Choice

Earthquakes that originate at depths greater than 100 km are associated with ______ plate boundaries.

• A)convergent
• B)transform
• C)divergent
• D)convergent,divergent,and transform

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Definitions:

Phytoplankton

Microscopic plant-like organisms that float in water bodies; they are the primary producers in aquatic ecosystems.

Radioactive Isotope

An isotope of an element that has an unstable nucleus and emits radiation during its decay to a stable form.

Greenhouse Effect

The process by which radiation from a planet's atmosphere warms the planet's surface more than it would without this atmosphere, largely due to greenhouse gases.