Life in the Cosmos

Questions regarding the search for life away from Earth

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Last updated: July 25, 2019

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First submitted	May 29, 2019
Times taken	20
Average score	35.0%
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Question	Answer
What is the most abundant gas in the atmosphere of Titan?	Nitrogen
What characteristic allows TItan to have an atmosphere whereas the similarly sized Mercury does not?	tempertaure (Titan is cooler)
What is the approximate lifetime of the Sun (in billions of years)?	10 Billion Years
What geological features have removed craters from the Martian surface in the past?	Volcanoes
What object is at the centre of the Solar System in Copernicus' System?	The Sun
Less massive stars have longer/shorter/similar lifetimes to more massive stars?	longer
The basic process of nuclear fusion in stars is known as the ...	Proton Proton Cycle
What is a small particle from a coment or asteroid that orbits the Sun?	Meteoroid
The main chemical building blocks of life, C, H, O, and N were formed in ...	Stars
What is the name of the process in which a number of smaller nuclei combine to form a larger nucleus with the release of energy?	Nuclear Fusion
The Sun will end its life by becoming a ...	White Dwarf
The trapping of infrared radiation from the Earth's surface by greenhouse gases like carbon dioxide, methane, and water is knows as the --- Effect	Greenhouse
What is a small rocky body in the Solar System?	Asteroid
Which EM waves are the most efficient way to communicate between civilizations?	Radio Waves
What is the most abundant element within nebulae?	Hydrogen
In what present day country did the asteroid that is believed responsible for the extinction of the dinosaurs hit the surface of the Earth?	Mexico
Layers of sediment that once contained colonies of ancient microbes are called	Stromatolites
Where is the Sun within the Milky Way Galaxy?	Orion Arm (within the disk)
For the transit of an extrasolar planet to be observed, the orbital plane of the planet has to be aligned along ...	our line of sight
The most abundant element in the human body by number of atoms is ...	Hydrogen

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