Question : The final boundary between the Earth and the outer space is called ____.
Option 1: magnetosphere
Option 2: ionosphere
Option 3: mesopause
Option 4: magnetopause
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Correct Answer: magnetopause
Solution : The correct answer is magnetopause.
The magnetopause is a line that separates the Earth's magnetic field from the solar wind. Solar winds are a component of outer space, although Earth's atmosphere extends up to the magnetosphere. Chapman and Ferraro first proposed this boundary in 1931.
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Question : The atmospheric layer farthest from the Earth's surface is known as
Option 1: Stratosphere
Option 2: Exosphere
Option 3: Ionosphere
Option 4: Mesosphere
Question : A level of the atmosphere which is composed partly of electrons and positive ions is called
Option 1: Troposphere
Option 2: Ionosphere
Option 3: Stratosphere
Question : The layer of the atmosphere in which Radio Waves are reflacted back is called :
Option 1: ionosphere
Option 2: troposphere
Option 3: stratosphere
Option 4: exosphere
Question : The space shuttle which took Sunita Williams beyond Earth was
Option 1: Challenger
Option 2: Galileo
Option 3: Discovery
Option 4: Voyager-2
Question : The solar radiation coming to Earth is called
Option 1: Radiant energy
Option 2: Insolation
Option 3: Sunshine
Option 4: Terrestrail radiation
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