Beyond the answers - interesting background to this quiz

The band behind a global pop phenomenon

ABBA took their name from the initials of their four members: Agnetha Faltskog, Bjorn Ulvaeus, Benny Andersson and Anni-Frid Lyngstad. "Dancing Queen" was released in 1976 and became one of their signature songs, later added to the US Library of Congress National Recording Registry for its cultural significance. Their music has endured far beyond the disco era, thanks in part to the stage musical and films built around their catalogue.

A term borrowed from Italian

The phrase "a capella" comes from Italian and means "in the manner of the chapel", reflecting the church tradition of singing without instruments. Andante, by contrast, is a tempo marking meaning a walking pace, while "antecedence" is not a standard musical term at all. The distinction matters because tempo and texture describe very different aspects of a piece.

Water as the product of combustion

When hydrogen burns in the presence of oxygen, the reaction produces water, which is why hydrogen is sometimes discussed as a clean fuel: its main combustion product is H2O rather than carbon dioxide. This simple reaction, 2H2 + O2 -> 2H2O, is one of the first equations many students learn in chemistry.

The most abundant element in the cosmos

Hydrogen is the lightest element and by far the most plentiful in the universe, making up roughly three quarters of all ordinary matter. Stars like our Sun fuse hydrogen into helium in their cores, releasing the energy that makes them shine. This is why astronomers often describe the universe as fundamentally hydrogen-based.

Capitals, borders and a play that won a Pulitzer

Bratislava is the capital of Slovakia and Ljubljana the capital of Slovenia, while Munich is a major German city but not a national capital, since that role belongs to Berlin. Spain shares a long land border with France along the Pyrenees. And "Death of a Salesman", Arthur Miller's tragedy about Willy Loman, won the Pulitzer Prize for Drama in 1949 and remains a staple of theatre and literature courses.