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An acid anhydride is a compound with two acyl groups bound to a single oxygen atom. It is a type of chemical compound derived by…

Seychelles (/seɪˈʃɛlz/ ; French: sɛʃɛl or seʃɛl), officially the Republic of Seychelles (French: République des Seychelles; Creole: La Repiblik Sesel), an island republic in the…

Social capital refers to the intangible resources embedded within interpersonal relationships or social institutions. It is the effective functioning of social groups through interpersonal relationships,…

Definition – Trap Rock, also known as either trapp or trap, is a name used in the construction industry for any dark-colored igneous rock that…

Palawan (pronounced /pəˈlɑːwɑːn/) island, the southwestern-most large island of the Philippines. It is officially known the Province of Palawan (Cuyonon: Probinsya i’ang Palawan / Paragua;…

The actinide is a periodic series of metallic elements with atomic numbers 89 to 103, from actinium through lawrencium. This series encompasses the 15 metallic chemical…

Definition – Schist (pronounced /ʃɪst/ SHIST), megascopically crystalline rock that has a highly developed schistosity, or tendency to split into layers. Banding (foliation) is typically…

Collateral Security Collateral is an asset that a lender accepts as security for extending a loan. Collateral security is any property-movable or immovable property offered…

Bora Bora (French: Bora-Bora; Tahitian: Pora Pora), volcanic island, Îles Sous le Vent (Leeward Islands), is a 30.55 km2 (12 sq mi) island group in…

Certificate of Origin A Certificate of Origin or CO is a document that indicates where a product came from. The certificate describing the place of…

Yosemite National Park (/joʊˈsɛmɪti/ yoh-SEM-i-tee) is an American national park located in the western Sierra Nevada of Central California, bounded on the southeast by Sierra…

Definition – Pumice ( /ˈpʌmɪs/), called pumicite in its powdered or dust form, is a light-colored, extremely porous igneous rock that forms during explosive volcanic…