QUES: As with previous USB versions, USB 3.0 ports come in low-power and high-power variants, providing 150 mA and 900 mA respectively, while simultaneously transmitting data at SuperSpeed rates. Additionally, there is a Battery Charging Specification (Version 1.2 – December 2010), which increases the power handling capability to 1.5 A but does not allow concurrent data transmission. The Battery Charging Specification requires that the physical ports themselves be capable of handling 5 A of current[citation needed] but limits the maximum current drawn to 1.5 A.
What is a downfall of the Battery Charging Specification?

ANS: does not allow concurrent data transmission

QUES: 155th Street starts on the West Side at Riverside Drive, crossing Broadway, Amsterdam Avenue and St. Nicholas Avenue. At St. Nicholas Place, the terrain drops off steeply, and 155th Street is carried on a 1,600-foot (490 m) long viaduct, a City Landmark constructed in 1893, that slopes down towards the Harlem River, continuing onto the Macombs Dam Bridge, crossing over (but not intersecting with) the Harlem River Drive. A separate, unconnected section of 155th Street runs under the viaduct, connecting Bradhurst Avenue and the Harlem River Drive.
How many meters long is the viaduct on which 155th Street travels?

ANS: 490

QUES: Lee has said that To Kill a Mockingbird is not an autobiography, but rather an example of how an author "should write about what he knows and write truthfully". Nevertheless, several people and events from Lee's childhood parallel those of the fictional Scout. Lee's father, Amasa Coleman Lee, was an attorney, similar to Atticus Finch, and in 1919, he defended two black men accused of murder. After they were convicted, hanged and mutilated, he never tried another criminal case. Lee's father was also the editor and publisher of the Monroeville newspaper. Although more of a proponent of racial segregation than Atticus, he gradually became more liberal in his later years. Though Scout's mother died when she was a baby, Lee was 25 when her mother, Frances Cunningham Finch, died. Lee's mother was prone to a nervous condition that rendered her mentally and emotionally absent. Lee had a brother named Edwin, who—like the fictional Jem—was four years older than his sister. As in the novel, a black housekeeper came daily to care for the Lee house and family.
What titles did Lee's father maintain at the local newspaper?

ANS: editor and publisher

QUES: Over a dozen racial categories would be recognized in conformity with all the possible combinations of hair color, hair texture, eye color, and skin color. These types grade into each other like the colors of the spectrum, and not one category stands significantly isolated from the rest. That is, race referred preferentially to appearance, not heredity, and appearance is a poor indication of ancestry, because only a few genes are responsible for someone's skin color and traits: a person who is considered white may have more African ancestry than a person who is considered black, and the reverse can be also true about European ancestry. The complexity of racial classifications in Brazil reflects the extent of miscegenation in Brazilian society, a society that remains highly, but not strictly, stratified along color lines. These socioeconomic factors are also significant to the limits of racial lines, because a minority of pardos, or brown people, are likely to start declaring themselves white or black if socially upward, and being seen as relatively "whiter" as their perceived social status increases (much as in other regions of Latin America).
What way would categories grade into each other, rather than being isolated from each other?

ANS:
like the colors of the spectrum