Which Types of Clusters Are NOT Gravitationally Bound

question 135

Multiple Choice

Which types of clusters are NOT gravitationally bound?

• A) open star clusters and superclusters of galaxies
• B) globular clusters and superclusters of galaxies
• C) galaxy clusters and superclusters
• D) globular clusters and galaxy clusters

---

Definitions:

Shear Zones

Regions of the Earth's crust where rocks have been deformed by shear stress, leading to the development of features like stretched and thinned rocks, often seen in tectonic plate boundaries.

Canadian Shield

A large geological shield, covered by a thin layer of soil, that comprises most of the eastern and central Canada and parts of the United States, characterized by ancient crystalline rocks.

Exposed Rocks

Rocks that are visible on the surface of the Earth and are not covered by soil or vegetation.

Oceanic Plateau

Underwater volcanic regions characterized by flat-topped mountains or plateaus, resulting from extensive eruptions of basaltic lava.