Everyday Science 02

11.   The Sun is a __________.

A.      Star

B.      Planet

C.      Asteroid

D.      Meteor

12.   The average adult has a blood volume of about __________ liters.

A.      4

B.      5

C.      6

D.      7

13.   The most abundant element in the universe is __________.

A.      Oxygen

B.      Hydrogen

C.      Carbon Dioxide

D.      Silicon

14.   The most abundant element in the Earth's crust is __________.

A.      Oxygen

B.      Hydrogen

C.      Carbon Dioxide

D.      Silicon

15.   Each day human body breathe in __________ liters of air.

A.      5,000 to 10,000

B.      10,000 to 15,000

C.      15,000 to 20,000

D.      20,000 to 25,000

16.   Deficiency of Vitamin-D results in __________.

A.      night blindness

B.      rickets

C.      scurvy

D.      hair fall

17.   The  SI unit of "pressure" is _________.

A.      pascal

B.      joule

C.      tesla

D.      henry

18.   The most densest substance on the Earth is __________.

A.      Platinum

B.      Copper

C.      Steel

D.      Osmium

19.   A camera uses a __________ to form an image.

A.      convex lens

B.      concave lens

C.      condenser lens

D.      none of these

20.   Which from the following is NOT a conductor?

A.      Aluminium

B.      Silicon

C.      Graphite

D.      All are conductors

ANSWERS: SCIENCE MCQs

11. A	12. B	13. B	14. A	15. C
16. B	17. A	18. D	19. A	20. D

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