Question

Q.1 Choose the correct option of the following questions: (1 mark each)
(1) Levelling of soil helps to prevent
(A) Soil erosion (B) Cultivation
(C) Sowing
(2)The unwanted plants that grow along with crops are called
(D) Drought
(A) fertilizers (B) manure
(C) Weeds
(D) kharif crops
(3) Micro organism which is smaller than bacteria
(A) fungi
(B) Algae
(C) virus
(4)Bacterium helps in curd formation
(D) Lactobacillus
(A) fungi
(B) Algae
(C) virus
(D) Lactobacillus
(5) Which is Basic component of animal fiber?
(A) Protein
(B) Sugar
(C) Lipid
(D) Teflon
(6)is artificial fiber.
(A) Cotton
(B) Wool
(C) Nylon
(D) Silk
(7) Which of the following is example of metalloids?
(A) Silicon
(B) Gold
(C) Chlorine
(D) Silver
(8) Which is not a property of non-metals?
(A) Ductility (B) Sonority
(C) Luster
(D) All of these
(9) Which is fossil fuel?
(A) Coal
(B) Natural gas
(C) Both (A) and (B) (D) None of these
(10) Which gas is clear fuel & obtained naturally from earth?
(A) CNG
(B) LPG
(C) Coal
(D) Cogas
(11) Which is unit to expressions calorific value of a fuel?
(A) KJ
(B) KJ/Kg
(C) Kg
(D) Kg/KJ
(12) What does magnesium burnt to form?
(A) Heat
(B) Light
(C) Magnesium oxide (D) All of these
(13) Which is Natural cause of deforestation?
(A) severe
(B) forest fires
(C) Both (A) and (B) (D) None of these
droughts
(14) Which is flora?
(A) Elephant (B) Jamun
(C) Wild bear
(D) Tiger
(15) What is calorific value of Hydrogen as fuel ?
(A) 1,50,000
(B) 1,000
(C) Lowest
(D) None of the above
(16) Which metal is used in thermometers?
(A) Gold
(B) Iron
(C) Mercury
(D) Copper
(17) Which process is used for loosening and turning of the soil?
(A) Tilling
(B) Sowing
(C) Plugging
(D) (A) and (B)
(18) Which is unit of force
(A) Kg
(B) Km
(C) Newton
(D) Km/h
(19) Which of the following is not a contact force?
(A) Muscular force (B) force of friction (C) Both (A) and (B) (D) None of these
(20) What kind of force is an electrostatic force?
(A) Contact force (B) Muscular force
(C) Non-contact force (D) friction force​

Answer 1

Answer:

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Answer 2

Answer:

1. a
2. c
3. c
4. d
5. d
6. c
7. a
8. d
9. c
10. a
11. b
12. d
13. b
14. b
15. d
16. c
17. c
18. c
19. d
20. c