Science 100 Top MCQ's

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1 :    TB is caused by a particular type of germ is called.................


Ans:   Bacteria


2 :   The inflammatory condition of the liver is called........................


Ans: Hipatites


3 :   In which food most of the calcium is found? 


Ans:   Milk 


4 :  what is the cause of polio? 


Ans :  Virus


5 :  Human is the example of .............


Ans :    Omnivores


6 :  Food pyramid is divided into...........


Ans :  6 groups 


7 :   The smallest particle of matter is. 


Ans :   Atom


8 : Thermometer is an instrument which is used for measuring .................


Ans :   Temperature 


9 :   The liquid thing in thermometer is called ................... 


Ans :  Mercury


10 :  When a body changes its position, it is called ................


Ans :  Motion


11 :   Material through which current can pass are called .........


Ans:      Conductor


12:  ................ is an example of simple matchine.


Ans:  Stapler 


13: The second largest mine of natural salt in the is located.................


Ans:  Khewra


14: Renewable energy can be generated from .


Ans: Wind


15 : Protecting natural resources is called......

Ans:  Conservation


16:  The average long duration condition of weather is called ...............


Ans: Climate


17: Which instrument is used to measure atmospheric pressure? 


Ans:   Barometer


18: The earth is divided into two equal parts  by ..................



Ans: Equator


19: Which zone of Earth receives verticle sun rays? 


Ans: Tropical 


20: In how many zones the Earth  is divided on the basis of climate?


Ans: 3 


21: The climate of the region of polar zone is..............


Ans: extremly cold


22: The diameter of the Earth is ................


Ans:  12,800 KM


23: Which planet is closest to the sun? 


Ans : Mercury 


24:  What is supernova? 


Ans: A dying star


25:  Commets revolve around .....................


Ans: Sun


26: Which is the fifth largest planet in our solar system? 


Ans:  Earth


27: The Mars has ..........moons. 


Ans:  2 


28: The group of stars is called ..............


Ans : Constellation


29: The hottest planet of the solar system is .


Ans: Venus


30:  The revolution of earth around the sun is called ...............Earth. 


Ans: Orbital motion


31:  The light from the sun reaches the earth in ................


Ans: 8 Minutes


32: Leap year consists of ........................days.


Ans:  366


33: Ancient people believed that the earth was; 


Ans: Flat 


34:  ............... protests us from infection;


Ans: Skin


35: Which organ pumps the blood to the whole body? 


Ans: Heart


36: Heart is protected by ..............


Ans: Ribs


37: Locomotion is ........... of a body.


Ans: Motion


38: Pupa is transformed into ..........................


Ans: Adult


39:  Which part of plants produces seed? 


Ans: Fruit


40: classification of animals and plants is called...................


Ans:  Taxanomy


41: Vertibrates are further classified into........major groups.


Ans: Five 


42: During germination , seed absorbs water through its..........................


Ans: Micropyle


43: Thongs around us make our...............


Ans:  Environment


44: Sound can not travel through .


Ans:  Vaccuum 


45: Speed of sound in Iron is ....


Ans: 5130 m/s 


46: Sound is kind of .........


Ans: Energy


47: Lighting is due to ..............


Ans: Static charge


48: Compass will always point towards. ......


Ans: North - South 


49: Thickness of inner core of earth is about...................


Ans: 1250KM


50: The Inner core of the Earth is made up of ..........................


Ans: Iron


51: Thickness of outer core of earth is about...................................


Ans: 2250 KM



52: About how many percent of water is frozen in the form of glaciers? 


Ans:   2% 


53: Sputnik-1 was launched by ............


Ans: Soviet Union


54: Natural satelite of Earth is ................

Ans: Moon

55: The Jupiter has ......... moons.


Ans:  79


56:  which force opposes motion?


Ans:  Friction


57:  The rate of doing work is called : 


Ans :  Power


58: The unit of power is ...........


Ans: Watt


59: .................of an object does not remain the same everywhere.


Ans: Weight


60: Which is the most important part of the cell. 


Ans:  Nucleus


61: In the eye, sensory cells are located on...


Ans:  Retina


62: The optic nerves behind the retina take signals to the...........................


Ans: Brain


63: What is sclera? 


Ans:  White part of eye


64: Smallest cells present in human body are..........................


Ans:  Sperm cell


65: The control room of our body is ..........


Ans:   Brain


66: The most sensitive part of our eye is...


Ans: Lens


67: The living things are called the ..............


Ans: Biotic Components.


68: Non living things are called ........


Ans: Abiotic components


69: An animal that kills and eats predator is called . 


Ans :   prey


70: Carbon as diamond is used in .......


Ans: Jewelry


71:  Mixture of sand and water can be easily separated by: 



Ans: Filtration


72: Oxygen is not neccessary for ................


Ans: Photosenthesis 


73: On cooling, a liquid will be changed in to........................


Ans: Solid


74: Process of burning under presence of oxygen is known as .......................


Ans: Combustion


75 :  The lowest layer of atmosphere is .......


Ans: Troposphere


76: Moving air is called. 


Ans: Wind


77: The term Aqua means...........


Ans:   Water


78: Heat and light is the form of ............. energy.


Ans: Kinetic 


79: Collection of rays is called ................


Ans:  Beam 


80: The pitch of sound depends on .........


Ans: Frequency


81: Enzymes that digest fats are known as ...................


Ans: Lipase


82: Mechanical breakdown of food is due to ............................


Ans: Chewing


83: Proteins are Converted into..................


Ans: Amino Acids


84: Which is the largest part of Alimentary canal? 


Ans: Small Intestine


85: which one in the breathing system is called the sound box? 


Ans: Larynx


86: The opening of the trachea is called the ..............................


Ans:  glottis


87: The human body is made of ...................


Ans: trillion cells


88: Hemoglobin is the combination of ..........


Ans: Proteins and Iron


89: The smallest blood vessels in the body are........................


Ans:  Capillaries


90: Insulin is a chemical that is produced in...


Ans: Pancreas


91: Ovary , style and stigma are the part of ....


Ans: Carpel


92: Male sex cell is called ..........................


Ans: Sperm


93: Those animals which active during at day are called ...................


Ans: diurnal


94: Those animals which active during at night are called ...................


Ans: Nocturnal animals


95: Warm air rises because of ...............


Ans: Conviction


96: Which part if the brain is the largest part of the brain? 


Ans: Fore brain


97: Heart beat is controlled by.......................


Ans: Medulla oblongata


98: The outer surface of Kidney ...................


Ans:    Convex


99: Chromosomes are made up of ................


Ans: DNA    and Protein


100 : Ultraviolet radiations from Sun that reach the earth cause........................


Ans:  Skin Cancer 

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