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Hassan
1.The sky appears blue because the earth's atmosphere
A. Scatters blue light
B. Reflects blue light
C. Transmits blue light
D. Scatters blue light
2.The most abundant element in earth's crust is
A. Silicone
B. Iron
C. Aluminum
D. Silicone
3.Heating element of an electric heater is made up of
A. Tungsten
B. Graphite
C. Chromium
D. Tungsten
4.Which gas is used in the preparation of soft drinks?
A. Oxygen
B. Carbon dioxide
C. Nitrogen
D. Oxygen
5.In blood, the percentage of water is
A. 75%
B. 85%
C. 90%
D. 75%
6.The volume percentage of nitrogen in air is
A. 60%
B. 67%
C. 74%
D. 60%
7.Which of the following is involved in blood clotting
A. Sodium
B. Magnecium
C. Calcium
D. Sodium
8.For water purification, we use
A. Chlorine
B. Bromine
C. Flourine
D. Chlorine
9.The human blood is divided into
A. Two groups
B. Three groups
C. Four groups
D. Two groups
10.Which type of blood of individuals are known as universal donor.
A. Type A
B. ) Type B
C. ) Type AB
D. Type A
11.Which type of blood of individuals are universal recipients
A. Type A
B. ) Type AB
C. Type B
D. Type A
12.A man can survive without food for at least
A. One month
B. Two months
C. ) Three months
D. One month
13.The muscles, tissues and blood all are made up of
A. Carbohydrates
B. Proteins
C. Vitamins
D. Carbohydrates
14.The major part of natural gas. petroleum and coal consist of
A. Carbon dioxide
B. b) Chlorin
C. c) CFC
D. Carbon dioxide
15.30. Which type of Uranium is used in the fission process
A. Uranium - 234
B. Uranium - 235
C. Uranium-236
D. Uranium - 234
16.The speed of sound is
A. 300 meter per second
B. 315 meter per second
C. 340 meter per second
D. 300 meter per second
17.A mobile phone sends and receives messages through
A. Sound waves
B. Microwaves
C. Ultraviolet waves
D. Sound waves
18.Steel is more elastic than rubber because
A. It's density is high
B. It is a metal
C. Ratio of stress to strain is more
D. It's density is high
19.What does make the blood look red?
A. Red corpuscles
B. Haemoglobin
C. Plasma
D. Red corpuscles
20.The acid used in a car battery is
A. Hydrochloric acid
B. Nitric acid
C. Sulphuric acid
D. Hydrochloric acid
21.The shortest bone in the human body is
A. Vertebrae
B. Stapes
C. Phalanges
D. Vertebrae
22.A balanced diet contains
A. Animal Protein
B. Macro and micro nutrients
C. Food nutrients for growth and maintenance
D. Animal Protein
23.Wisdom teeth normally grow between the age of
A. 34-40
B. 17-30
C. 45-55
D. 34-40
24.Pituitary gland is located just below the
A. Brain
B. Heart
C. Liver
D. Brain
25.During sleep a man's blood pressure:
A. Increase
B. Decrease
C. Remains constant
D. Increase
26.There are approximately muscles in human body
A. 200
B. 350
C. 500
D. 200
27.The saliva helps in the digestion of
A. Proteins
B. Fats
C. Fibers
D. Proteins
28.Life of RBC in human blood is of
A. 30 days
B. 60 days
C. 120 days
D. 30 days
29.The largest living bird is
A. Duck
B. Ostrich
C. Peacock
D. Duck
30.Which of the following is known as 'graveyard of RBCs'?
A. Liver
B. Bone marrow
C. Spleen
D. Liver
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