General Knowledge: Sports, Science, History & Technology

Marat Safin retired from tennis after his final match at the 2009 US Open, where he lost to Juan Martin del Potro. Safin, known for his powerful game and two Grand Slam titles (2000 US Open, 2005 Australian Open), ended his career at that tournament. The scoreline matches his defeat in the fourth round of his final Grand Slam appearance.

The Lost Symbol (2009) was Dan Brown's book following The Da Vinci Code and Angels & Demons, featuring Robert Langdon again. It received polarized reviews, with some critics praising it and others harshly criticizing it. The other options are earlier Brown novels: Deception Point (2001), The Da Vinci Code (2003), and Angels & Demons (2000).

NDTV Imagine was the channel that aired the reality show 'Rakhi Ka Swayamwar' in 2009, where Rakhi Sawant chose Elesh Parujanwala as her fiancé from 16 contestants. The show was a televised swayamwar (wedding ceremony) that gained significant media attention.

Dr. Conrad Murray was Michael Jackson's personal physician who administered the lethal dose of propofol that led to the pop icon's death in June 2009. He was later convicted of involuntary manslaughter for this incident.

Mohammad Ali Jinnah led the All-India Muslim League and is celebrated as Pakistan's founding father, serving as its first Governor-General. The correct spelling is 'Jinnah' not 'Jinna'.

Giovanni da Verrazzano, an Italian explorer sailing for France, entered New York Harbor in 1524 during his exploration of the North American coast. He was the first European since the Norse to visit the area.

Basketball is among the most popular sports in America, with the NBA being a major professional league. The question framing is imprecise since basketball is played both indoors and outdoors.

Butterflies are insects, and all insects have 6 legs as a fundamental characteristic of their class. This distinguishes them from arachnids (8 legs) and other arthropods.

Gold is the densest metal among these options at 19.3 g/cm³, making it heavier than Silver (10.5 g/cm³) and Aluminium (2.7 g/cm³) for the same volume. Density determines which metal is heavier.

Russia is the world's largest country by land area at approximately 17.1 million square kilometers, vastly larger than India (3.3 million km²), China (9.6 million km²), or Thailand (513,000 km²).

The Arctic Ocean is the smallest and shallowest of the world's five oceans at about 14 million square kilometers. It's much smaller than the Pacific Ocean (165 million km²) and is not connected to the Arabian Sea.

The first jeans were invented by Levi Strauss and Jacob Davis in 1873 when they received a patent for riveted work pants. This date marks the official birth of blue jeans as we know them.

SixDegrees.com, launched in 1997, is widely recognized as the first social networking site. It allowed users to create profiles and connect with friends, pioneering features that later platforms like Facebook and MySpace would popularize.

Serena Williams was the first woman to earn over $6.5 million in a single year (2009), primarily from prize money. She dominated women's tennis with numerous Grand Slam victories and holds the record for highest single-season earnings in women's tennis.

Serena Williams was the first woman to earn over $6.5 million in a single year (2013), setting a new prize money record in tennis. This achievement highlighted both her dominance on court and the increasing financial rewards in women's tennis during that era.

Nirupama Vaidyanathan became the first Indian woman in the modern era to win a Grand Slam match when she defeated Gloria Wildmerin in the first round of the 1998 Australian Open. While Sania Mirza later achieved greater success, Nirupama paved the way. Dia Mirza is an actress, not a tennis player, while Rushmi Chakravarthi was a domestic champion.

Juan Martin del Potro had a 23-match winning streak as a teenager in 2007-08, which is indeed the second-longest teenage winning streak in the Open Era behind Rafael Nadal. This streak culminated in his first US Open title. The question has a minor typo ('complet' instead of 'complete') but the factual content is correct.