Problem: Hydrogen, as atomic H, is the most abundant chemical element in the universe, making up 75% of normal matter by mass and over 90% by number of atoms (most of the mass of the universe, however, is not in the form of chemical-element type matter, but rather is postulated to occur as yet-undetected forms of mass such as dark matter and dark energy). This element is found in great abundance in stars and gas giant planets. Molecular clouds of H2 are associated with star formation. Hydrogen plays a vital role in powering stars through the proton-proton reaction and the CNO cycle nuclear fusion.
What percent of atoms is hydrogen?
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Answer: 90%


Problem: In January 1964, Nasser called for an Arab League summit in Cairo to establish a unified Arab response against Israel's plans to divert the Jordan River's waters for economic purposes, which Syria and Jordan deemed an act of war. Nasser blamed Arab divisions for what he deemed "the disastrous situation". He discouraged Syria and Palestinian guerrillas from provoking the Israelis, conceding that he had no plans for war with Israel. During the summit, Nasser developed cordial relations with King Hussein, and ties were mended with the rulers of Saudi Arabia, Syria, and Morocco. In May, Nasser moved to formally share his leadership position over the Palestine issue by initiating the creation of the Palestine Liberation Organization (PLO). In practice, Nasser used the PLO to wield control over the Palestinian fedayeen. Its head was to be Ahmad Shukeiri, Nasser's personal nominee.
What river did the Israelis want to divert?
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Answer: Jordan River


Problem: Phase one mode is activated by a corresponding smoke sensor or heat sensor in the building. Once an alarm has been activated, the elevator will automatically go into phase one. The elevator will wait an amount of time, then proceed to go into nudging mode to tell everyone the elevator is leaving the floor. Once the elevator has left the floor, depending on where the alarm was set off, the elevator will go to the fire-recall floor. However, if the alarm was activated on the fire-recall floor, the elevator will have an alternate floor to recall to. When the elevator is recalled, it proceeds to the recall floor and stops with its doors open. The elevator will no longer respond to calls or move in any direction. Located on the fire-recall floor is a fire-service key switch. The fire-service key switch has the ability to turn fire service off, turn fire service on or to bypass fire service. The only way to return the elevator to normal service is to switch it to bypass after the alarms have reset.
What initiates Phase one mode?
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Answer:
a corresponding smoke sensor or heat sensor in the building