Examlex
Which of the following is true about peace-building efforts by the UN?
Octahedron
A geometric shape with eight faces, often used to describe the structure of certain crystals or molecules.
Tetrahedron
A polyhedron with four triangular faces, six straight edges, and four vertex corners.
Dodecahedron
A three-dimensional shape having twelve flat faces, each a regular pentagon, often studied in geometry and used in various applications.
Effervescence
The release of gas bubbles from a liquid, often observed when acids react with carbonate rocks or minerals.
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