Question

Q:1. Venus fly trap plant traps insects because it? *
(A) Is a heterotroph.
(B) Grows in soils which lack in nitrogen.
(C) Does not have chlorophyll.
(D) Has a digestive system like human beings.
Q:2. The term that is used for the mode of nutrition in yeast? *
(A) Autotrophic
(B) Insectivorous
(C) Saprophytic
(D) Parasitic
Q:3. Two organisms are good friends and live together. One provides shelter, water, and nutrient while the other Prepares and provides food. Such an association of organisms is termed as? *
(A) Saprophyte
(B) Parasite
(C) Autotrophic
(D) Symbiosis
Q:4. Which of the following class of organisms belongs to saprotroph? *
(a) Fungi
(b) Algae
(c) Lichens
(d) Bryophytes
Q:5. Clothes does not protect us from which of the following condition? *
(A) Heat
(B) Cold
(C) Blood pressure
(D) Dust and germs
Q:6. Silk fibers’ are obtained from which of the following organisms? *
(A) Silk flies
(B) Silk animals
(C) Silk sheep
(D) Silkworms
Q:7. Caterpillar grows and is ready to enter the next stage which is? *
(A)Pupa
(B) Silkworm
(C) Silk moth
(D) Larva
Q:8. One litre of water at 30°C is mixed with one litre of water at 50°C. The temperature of the mixture will be? *
(A) 80°C
(B) More than 50°C but less than 80°C
(C) 20°C
(D) Between 30°C and 50°C
Q:9. A wooden spoon is dipped in a cup of ice cream. Its other end? *
(A) becomes cold by the process of conduction.
(B) becomes cold by the process of convection.
(C) becomes cold by the process of radiation.
(D) does not become cold.
Q:10. Stainless steel pans are usually provided with copper bottoms. Thereason for this could be that *
(a) Copper bottom makes the pan more durable.
(b) Such pans appear colourful.
(c) Copper is a better conductor of heat than stainless steel.
(d) Copper is easier to clean than the stainless steel
Q:11. Smoke always rises up because? *
(A ) It is spent air
(B) It is hot air
(C) Hot air expands
(D) Both B and c
Q:12. A cyclone warning is broadcasted? *
(A) 24 hrs in advance
(B) 48 hrs in advance
(C) 72 days in advance
(D) None of these
Q:13. Which of the following should not be done during a cyclone? *
(A) Storing drinking water
(B) Shifting necessary household items to a safer place
(C) Cooperating with reuse force
(D) Playing with electrical gadgets
Q:14. The S.I unit of speed is? *
(A) m/min
(B) km/s
(C) m/s
(D) V
Q:15. The time period of a pendulum changes due to- *
(A) increasing the length of string
(B) decreasing the length of string
(C) both (a) and (b)
(D) increasing the mass of bob
Q:16. The distance covered by object per unit time is called ? *
(A) Speed
(B) Velocity
(C) Uniform motion
(D) Time period
Q:17. Which device indicates the speed in dashboard of a car? *
(A) Odometer
(B) Speedometer
(C) Thermometer
(D) Manometer
Q:18. Choose the statement which is not correct in the case of an electric fuse? *
(A) Fuses are inserted in electric circuits of all buildings.
(B) There is a maximum limit on the current which can safely flow through the electric circuits.
(C) There is a minimum limit on the current which can safely flow in the electric circuits.
(D) If a proper fuse is inserted in a circuit it will blow off if current exceeds the safe limit.
Q:19. When a switch is in OFF position, (A) Circuit starting from the positive terminal of the cell stops at the switch. (B) circuit is open.(C) No current flows through it.(D) Current flows after some time.Choose the combination of correct answer from the following. *
(A) all are correct
(B) (ii) and (iii) are correct
(C) only (iv) is correct
(D) only (i) and (ii) are correct

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Answer 1

Answer:

1.b

2.c

3.d symbiotic relation ship is the right ans

4.a

5.c

6.d(i am not clear about this no.

7.dont know

8.d

9.d

10.c

11. d

12 don't know

13 don't know

14. c

15.c

16. I think speed. not clear about this ans

17.a

18 don't know

19.don't know