Which Letter in the Figure Above Corresponds to a "Syncline

question 90

Short Answer

Which letter in the figure above corresponds to a "syncline"?

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Definitions:

Earth

The third planet from the Sun, uniquely supporting life within the solar system.

Chlorofluorocarbons

A group of man-made chemical compounds containing chlorine, fluorine, and carbon, historically used in refrigeration and aerosol propellants, but now known to deplete the ozone layer.

Flammable

Easily ignited and capable of burning rapidly; used to describe substances that pose a significant fire risk.

Nontoxic

Substances that do not pose a risk of harm or poison to humans, animals, or the environment.