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Atmosphere of Venus: Quiz

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Question 1: The ratio of ________ to oxygen losses is around 2 (i.e.
HydrogenHeliumChlorineNitrogen

Question 2: The ________ spacecraft is now in orbit around the planet, probing deeper into the atmosphere using infrared imaging spectroscopy in the 1–5 µm spectral range.
Cassini–HuygensVenus ExpressProba-2Mariner 2

Question 3: Lighter gases, including water vapor, are continuously blown away by the solar wind through the induced ________.
MagnetosphereVan Allen radiation beltAurora (astronomy)Magnetopause

Question 4: [1] The Venusian atmosphere supports opaque clouds made of sulfuric acid, making ________ observation of the surface impossible.
OpticsAnti-reflective coatingTransparency and translucencyOptical fiber

Question 5: The ________ of the gases also enabled wind patterns to be measured.
Doppler effectRedshiftStarAstronomy

Question 6: One such event was observed by ________ between 9 and 13 January 2007, when the south polar region became brighter by 30%.
Mariner 2Cassini–HuygensProba-2Venus Express

Question 7: The atmosphere of Venus is composed mainly of ________, along with a small amount of nitrogen and other trace elements.
Carbon cycleGreenhouse gasCarbon sinkCarbon dioxide

Question 8: However there is no reason to suppose that Venus was an exception to the processes that formed Earth and gave it its water during its early history, possibly from the original rocks that formed the planet or later on from ________.
Solar SystemSunCometCentaur (minor planet)

Question 9: Due to the lack of the intrinsic magnetic field on Venus, the ________ penetrates relatively deep into the planetary exosphere and causes substantial atmosphere loss.
HeliosphereSolar windCoronal mass ejectionSun

Question 10: The observations in the various infrared atmospheric windows indicate that the ________ circulation observed near the poles may penetrate as deep as to 50 km altitude, i.e.
Synoptic scale meteorologyHigh-pressure areaAnticycloneTropical cyclone







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