ESS
Grade-9
Easy
Question
Sun is a huge mass of ____________gas.
- Oxygen
- Nitrogen
- Sulphur
- Hydrogen
Hint:
Sun is mostly made up of hydrogen by mass and uses that hydrogen as fuel.
The correct answer is: Hydrogen
- Sun is a star which uses nuclear fusion reaction of hydrogen to generate the heat and light energy.
Related Questions to study
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The Sun is continuously radiating energy but still its surface temperature is constant due to__________.
The Sun is continuously radiating energy but still its surface temperature is constant due to__________.
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Which of the following happens in the photosphere?
Which of the following happens in the photosphere?
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Observe the image and identify part ‘A’.
Observe the image and identify part ‘A’.
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Select the correct option in descending order of the number given in the image.
Select the correct option in descending order of the number given in the image.
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The pattern of heated material rising, and cooling takes place in the sun’s giant bubbles called _________.
The pattern of heated material rising, and cooling takes place in the sun’s giant bubbles called _________.
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Match the following:
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_________ has/have the shortest wavelength.
_________ has/have the shortest wavelength.
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_______ is not directly associated with magnetic fields.
_______ is not directly associated with magnetic fields.
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Most of the light that we get from the Sun is energy that was emitted by atoms in the ______.
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Select the INCORRECT characteristic of nuclear fusion.
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______ reaction uses hydrogen as reactant to complete the reaction.
______ reaction uses hydrogen as reactant to complete the reaction.
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In the structure of the sun, _______ layer is present after core.
In the structure of the sun, _______ layer is present after core.
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The place of hydrogen fusion is_________.
The place of hydrogen fusion is_________.
ESSGrade-9
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_________is the central part of the Sun.
_________is the central part of the Sun.
ESSGrade-9
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When two light nuclei of low mass combine to produce a heavy nucleus, the reaction is called ___________.
When two light nuclei of low mass combine to produce a heavy nucleus, the reaction is called ___________.
ESSGrade-9
