Everyday Science MCQs

Page No. 93

The SI standard of time is based on_____________?


athe daily rotation of the earth


bthe frequency of light emitted by Kr86


ca precision pendulum clock


dNone of these


View Answer none of these

Oranges are rich source of____________?


aCarbohydrates


bFats


cProteins


dVitamins


View Answer Vitamins

Which one is the brightest star in the night sky?


aBetelgeuse


bSirius


cRigel


dPolaris


View Answer Sirius

The large dark patches on the Moon’s surface are known as___________?


aDark matter


bMaria, or seas, even though there is no water on the Moon


cMaria, or seas, because they are filled with water


dMoon spots



What causes the Moon’s phases?


aThe Sun lights up only one half of the Moon and as the Moon orbits the Earth we can sometimes see the unlit side of the Moon.


bThe Sun lights up only one half of the Moon and as the Sun orbits the Earth we can sometimes see the unlit side of the Moon.


cThe Earth’s shadow falls on the Moon, blocking the sunlight.


dThe Moon’s shadow falls on the Earth, blocking the sunlight.



What are the names of the two stars in the Big Dipper used to locate Polaris?


aThe North Seekers


bThe Pointer Stars


cThe Pointer Sisters


dNone of these


View Answer The Pointer Stars

The Big Dipper is part of which constellation?


aUrsa Major


bUrsa Minor


cThe Great Bear


dBoth A and C


View Answer Both A and C

The sun is made up of 99.9% of ________________ and ______________?


aOxygen and Hydrogen


bHydrogen and Sulphur


cCarbon and Silicon


dHydrogen and Helium


View Answer Hydrogen and Helium

Antares is of the largest known ___________?


aPulsars Star


bQuasars Star


cWhite Dwarfs Star


dRed Super-giants Star


View Answer Red Super-giants Star

This in-between phase of stellar nurseries and star formation in stellar evolution is when the gathered dust is still condensing to form a star.


aAlpha Stage


bStellar Genesis


cProtostar


dStar of Adam


View Answer Protostar

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