Explanation

In psychometric surveys, the split-halves method is used to measure the internal consistency reliability of survey instruments, e.g. psychological tests.

Explanation

Congress is divided into two institutions: the House of Representatives and the Senate. The two houses of Congress have equal but unique roles in the federal government.

Explanation

The Court established this doctrine in the case of Marbury v. Madison (1803). In this case, the Court had to decide whether an Act of Congress or the Constitution was the supreme law of the land.

Explanation

Winning the French Open and Wimbledon back-to-back in the same year is knowns as the Channel Slam - referring to the English Channel that divides France and the UK. Needless to say, winning the Channel Slam is extremely difficult.

Explanation

The United Nations Human Rights Council is based in the Palais des Nations in Geneva, Switzerland.

It is also the European headquarters of the UN.

Date of formation: March 15, 2006

The UN Human Rights Council is a subsidiary body of the UN General Assembly.

It is responsible for promoting and protecting human rights globally.

It replaced the UN Commission on Human Rights.

It is composed of 47 member states, which are elected by the UN General Assembly for three-year terms.

Explanation

The Laver Cup is an international indoor hard court men's team tennis tournament between Team Europe and Team World, the latter of which is composed of players from all other continents except Europe.

Explanation

Together with her husband, she was awarded half of the Nobel Prize for Physics in 1903.

In 1911 she received a second Nobel Prize, this time in Chemistry.

Born: November 7, 1867, Warsaw, Poland

Died: July 4, 1934, Passy, France

Discovered: Radium, Polonium

Explanation

The whale shark is the largest species of any fish, known to reach more than 40 feet in length.

Explanation

The commitment to the US lunar mission was announced by president John F. Kennedy in May 1961. It was fulfilled in eight years later in July 1969, when Apollo 9 sent two astronauts - Neil Armstrong and 'Buzz' Aldrin- to the moon and returned them to earth safely, to be welcomed by Kennedy's successor (and nemesis) president Richard Nixon.

Explanation

Arab-Israeli wars, series of military conflicts between Israeli forces and various Arab forces, most notably in 

1. 1948–49: Israel’s War of Independence and the Palestinian Nakba
2. 1956: Suez Crisis
3. 1967: Six-Day War
4. 1973: Yom Kippur War
5. 1982: Lebanon War 
6. 2006: Second Lebanon War