Everyday Science MCQs

Page No. 77

Constellations referred to as zodiac, are__________?


aImaginary regions that encompass the path of the planets


bSigns of Roman gods


cA group of stars


dNone of these



‘Black holes’ refers to_______________?


aHoles occurring in heavenly bodies


bBright spots on the sun


cCollapsing object of high density


dCollapsing object of low density



The phases of the moon are partially the result of the____________?


aChanges in the shape of the moon


bRevolution of the moon around the earth


cVariations in the moon’s gravitation


dVariations in the speed of rotation of the moon



The top atmosphere of the Earth directly reflects back into space nearly what part of the total amount of sun’s energy coming to it?


a10%


b20%


c30%


d50%


View Answer 30%

What is the temperature at the center of the Sun?


a6 million °C


b10 million °C


c15 million °C


d20 million °C


View Answer 15 million °C

What is the mass of the Sun?


a1.5×10 Power 30 Kg


b1.98×10 Power 30 Kg


c4.5×10 Power 30 Kg


d8×10 Power 30 Kg


View Answer 1.98×10 Power 30 Kg

An example of an abiotic component __________?


aPlants


bSoil


cAnimals


dBacteria


View Answer Soil

Pollutants that are introduced into the environment by human activity are called as ___________?


aQualitative pollutants


bQuantitative pollutants


cAnthropogenic pollutant


dAll of the above



Basidiospores are considered to be a major source of ___________?


aairborne allergens


bwater borne allergens


canimal faeces


dbio-weapon


View Answer airborne allergens

The species that flower are called ______________?


aGymnosperms


bBryophytes


cAngiosperms


dAlgae


View Answer Angiosperms

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