Which Statement CORRECTLY Describes the Surface of Earth

question 430

Multiple Choice

Which statement CORRECTLY describes the surface of Earth?

• A) Individual, solid crustal plates are pushed around by Earth's rotation and the tidal forces of the Moon and the Sun.
• B) A thin, deformable crust allows the continents to slide over it.
• C) Individual and separate solid crustal plates are pushed around by convective motion in the material of the underlying mantle.
• D) A thick, solid crust keeps the continents and ocean floors in fixed positions with respect to one another.

---

Definitions:

Dinoflagellates

Single-celled, aquatic protists that move with a whirling motion; may be heterotrophic or photosynthetic.

Euglenoids

Single-celled organisms found in freshwater environments, characterized by their elongated shapes and the presence of a flagellum for movement.

Gut-dwelling

Referring to organisms that live within the digestive tract of a host, contributing to or affecting the host's health and nutritional status.

Ciliates

Single-celled or colonial protists with cilia.