Paper Olympiad Science
1. Which of the following statements is true?
(A) The probability of getting a boy or girl is 50%
(B) The probability of getting a boy is higher than that of a girl
(C) The probability of getting a girl is higher than that of a boy
(D) All of these
Ans ( A)
2. In-vitro fertilization is suitable for women
(A) who are infertile
(B) with blocked oviducts
(C) with damaged uterus
(D) who do not ovulate
Ans ( B)
3. Variation is important because
(A) it enables organisms to adapt to the changing environment
(B) it prevents the extinction of species
(C) it results in the formation of new species
(D) all of the above
Ans ( D)
4. The lightest liquid metal is
(A) Hg
(B) Ga
(C) Cs
(D) Fr
Ans ( C)
5. An electric heater of resistance 200 draws a current of 1A. Calculate its power.
(A) 100W
(B) 200W
(C) 300W
(D) 200V
Ans (B )
6. Which of the following cannot be added in a composting pit to prepare compost?
(A) Vegetable peels
(B) Plastic flowers
(C) Fruit pulp
(D) Earth worms and red worms
Ans ( B)
7. Identify the pair of elements with same number of valence electrons.
(A) Cl, Ar
(B) C, Ge
(C) Na, Ca
(D) K, Mg
Ans ( B)
8. A student waiting to receive his results feels mervous and the rate of his heartbeat increases. This conhition is due to the release of which of the following hormones?
(A) Adrenaline
(B) Thyroxine
(C) Oestrogen
(D) Insulin
Ans ( A)
9. In which two body organs does reabsorption of water take place?
(A) Colon and kidneys
(B) Duodenum and colon
(C) Liver and kidneys
(D) Liver and ileum
Ans ( A)
10. The ratings of three bulbs P, Q, R are 120V/24W 120V/60W and 240V/60W respectively. Identify the ascending order of their resistance.
(A) P,Q,R
(B) Q,P,R
(C) R,P,Q
(D) Q,R,P
Ans (B )
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