QUES: Paper made from mechanical pulp contains significant amounts of lignin, a major component in wood. In the presence of light and oxygen, lignin reacts to give yellow materials, which is why newsprint and other mechanical paper yellows with age. Paper made from bleached kraft or sulfite pulps does not contain significant amounts of lignin and is therefore better suited for books, documents and other applications where whiteness of the paper is essential.
What does lignin react to to produce the yellowing you see in newspapers?

ANS: light and oxygen

QUES: During a November 26, 2013 radio interview, West explained why he believed that President Obama had problems pushing policies in Washington: "Man, let me tell you something about George Bush and oil money and Obama and no money. People want to say Obama can't make these moves or he's not executing. That's because he ain't got those connections. Black people don't have the same level of connections as Jewish people...We ain't Jewish. We don't got family that got money like that." In response to his comments, the Anti-Defamation League stated: "There it goes again, the age-old canard that Jews are all-powerful and control the levers of power in government." On December 21, 2013, West backed off of the original comment and told a Chicago radio station that "I thought I was giving a compliment, but if anything it came off more ignorant. I don't know how being told you have money is an insult."
What type of people did Kanye state had more power than Black people?

ANS: Jewish people

QUES: Spielberg won the Academy Award for Best Director for Schindler's List (1993) and Saving Private Ryan (1998). Three of Spielberg's filmsJaws (1975), E.T. the Extra-Terrestrial (1982), and Jurassic Park (1993)achieved box office records, originated and came to epitomize the blockbuster film. The unadjusted gross of all Spielberg-directed films exceeds $9 billion worldwide, making him the highest-grossing director in history. His personal net worth is estimated to be more than $3 billion. He has been associated with composer John Williams since 1974, who composed music for all save five of Spielberg's feature films.
Who composes music for most of Spielberg's movies?

ANS: John Williams

QUES: Some scientific studies suggest that ozone depletion may have a dominant role in governing climatic change in Antarctica (and a wider area of the Southern Hemisphere). Ozone absorbs large amounts of ultraviolet radiation in the stratosphere. Ozone depletion over Antarctica can cause a cooling of around 6 C in the local stratosphere. This cooling has the effect of intensifying the westerly winds which flow around the continent (the polar vortex) and thus prevents outflow of the cold air near the South Pole. As a result, the continental mass of the East Antarctic ice sheet is held at lower temperatures, and the peripheral areas of Antarctica, especially the Antarctic Peninsula, are subject to higher temperatures, which promote accelerated melting. Models also suggest that the ozone depletion/enhanced polar vortex effect also accounts for the recent increase in sea ice just offshore of the continent.
What can the wind changes due to cooling cause in the Antarctic ice?

ANS:
accelerated melting