CBSE Class 8 Science Quiz | CBSE Class 8 Science Short Questions & Answers

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Questions
41 The male hormone is
A Estragon
B Projestrone
C Testosterone
D All of these

Answer: Testosterone
42 The number of chromosomes are present in human cell.
A 22 pairs
B 23 pairs
C 24 parirs
D 26 pairs

Answer: 23 pairs
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43 Puberty age in females is
A 10-12
B 8-10
C 12-14
D More than 14 years

Answer: 10-12
44 Fertilisation is called
A To produce sperm
B To produce eggs
C Fusion of sperms and eggs
D All of these

Answer: Fusion of sperms and eggs
45 The period of maturity of reproductive organs is called.
A Adolescene period
B Mensuration
C Gestation period
D None of these

Answer: Adolescene period
46 Initially girls grow _____ than boys.
A Faster
B Slower
C Both of these
D None of these

Answer: Faster
47 There are__ __ pairs of chromosome in human cell.
A 23
B 22
C 46
D All are wrong

Answer: 23
48 Thyroxin produced by
A Pituitary gland
B Adrenal gland
C Thyroid gland
D Testes

Answer: Thyroid gland
49 The egg is
A Egg gamete
B Female gamete
C Both of these
D None of these

Answer: Female gamete
50 Larynx is called
A Voice box
B Respiratory organ
C Music box
D None of these

Answer: Voice box
51 The charge acquired by a glass rod when it is rubbed with silk is
A Negative
B Positive
C Both
D None

Answer: Positive
52 Benjamen Franklin showed lightening in
A 1725
B 1527
C 1752
D 1572

Answer: 1752
53 Sparkers can be seen on electric pole. Which wires become
A Loose
B Wrinkle
C Tight
D None

Answer: Loose
54 Interaction of charges is called
A Lightening
B Electrical discharge
C Earthing
D Electricity

Answer: Lightening
55 Lightening occurs due to
A Electric discharge
B Rain
C Wind
D Lord Varun�s anger

Answer: Electric discharge
56 The shaking of earth is called
A Tsunami
B Volcano
C Earthquake
D All of these

Answer: Earthquake
57 The like charges
A Repel each other
B Attract each other
C No interaction takes place
D All of these

Answer: Repel each other
58 Name the resin which produces spark is
A Gum
B Amber
C Both A and B
D None of these

Answer: Amber
59 An electric lamp glows due to
A Chemical effect
B Magnetic effect
C Heating effect
D None

Answer: Heating effect
60 Electroplating prevents
A Current
B Chemical effect
C Rusting
D All

Answer: Rusting

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