Answer the question from the given passage. Your answer should be directly extracted from the passage, and it should be a single entity, name, or number, not a sentence.

Passage: While acknowledging the central role economic growth can potentially play in human development, poverty reduction and the achievement of the Millennium Development Goals, it is becoming widely understood amongst the development community that special efforts must be made to ensure poorer sections of society are able to participate in economic growth. The effect of economic growth on poverty reduction – the growth elasticity of poverty – can depend on the existing level of inequality. For instance, with low inequality a country with a growth rate of 2% per head and 40% of its population living in poverty, can halve poverty in ten years, but a country with high inequality would take nearly 60 years to achieve the same reduction. In the words of the Secretary General of the United Nations Ban Ki-Moon: 'While economic growth is necessary, it is not sufficient for progress on reducing poverty.' Question: What isn't economic growth sufficient for progress on?
reducing poverty

Passage: In particular, this norm gets smaller when a number is multiplied by p, in sharp contrast to the usual absolute value (also referred to as the infinite prime). While completing Q (roughly, filling the gaps) with respect to the absolute value yields the field of real numbers, completing with respect to the p-adic norm |−|p yields the field of p-adic numbers. These are essentially all possible ways to complete Q, by Ostrowski's theorem. Certain arithmetic questions related to Q or more general global fields may be transferred back and forth to the completed (or local) fields. This local-global principle again underlines the importance of primes to number theory. Question: What happens to the norm when a number is multiplied by p?
gets smaller

Passage: In 1857 John Sheepshanks donated 233 paintings, mainly by contemporary British artists, and a similar number of drawings to the museum with the intention of forming a 'A National Gallery of British Art', a role since taken on by Tate Britain; artists represented are William Blake, James Barry, Henry Fuseli, Sir Edwin Henry Landseer, Sir David Wilkie, William Mulready, William Powell Frith, Millais and Hippolyte Delaroche. Although some of Constable's works came to the museum with the Sheepshanks bequest, the majority of the artist's works were donated by his daughter Isabel in 1888, including the large number of sketches in oil, the most significant being the 1821 full size oil sketch for The Hay Wain. Other artists with works in the collection include: Bernardino Fungai, Marcus Gheeraerts the Younger, Domenico di Pace Beccafumi, Fioravante Ferramola, Jan Brueghel the Elder, Anthony van Dyck, Ludovico Carracci, Antonio Verrio, Giovanni Battista Tiepolo, Domenico Tiepolo, Canaletto, Francis Hayman, Pompeo Batoni, Benjamin West, Paul Sandby, Richard Wilson, William Etty, Henry Fuseli, Sir Thomas Lawrence, James Barry, Francis Danby, Richard Parkes Bonington and Alphonse Legros. Question: The paintings donated by John Sheepshanks were by artists of which nationality?
British