JNV-GENERAL SCIENCE CLASS 9th (2020)

Questions in this test

1. Lactobacillus is a/an______.
2. _______ is used in sowing.
3. Influenza is caused in human beings by_____
4. Smallpox vaccine was discovered by____
5. Which of the following is thermosetting plastic?
6. Which one of the following reacts vigorously with cold water?
7. Which property of copper is used for making electric wires?
8. Which of the following is not a constituent of petroleum?
9. Which one of the following is not a natural resource?
10. The black thick liquid with an unpleasant smell is known as:
11. Species is found exclusively in a specific habitat
12. The Environmental impact of clearing large patches of forests for the cultivation of crops is
13. The leaves are green due to_______
14. Which one of the following is found in cells of plants, animals as well as bacteria?
15. Hen_____
16. In Amoeba, reproduction take place by_______
17. Insufficient production of ______ in the tadpoles leads to their incomplete development.
18. At the onset of puberty _____ is released by testes.
19. A gas-filled balloon move up because______
20. Two thermocol balls held close to each other move away because of_______ force.
21. Wearing of cartilage in the body_______ friction.
22. The handle of a cricket bat is usually rough to______.
23. If we increase the vibration in an object the time period will _____
24. Ultrasound has______ frequency of vibration.
25. Iron is painted to_______
26. ________ of the following is not a good conductor of electricity.
27. Earthquakes can cause_____
28. When you rub the back of the plastic pen in your hair and bring it near a small piece of paper it attracts paper due to
29. If the object is 5 cm away from the plane mirror, the image formed by it and object will be _______cm apart.
30. A ray of light can reflected ____ times by two plane mirrors placed parallel and facing each other.
31. Planet venus is also known as ______
32. A star is fifteen light years away from earth the light emitted by it today will be seen after _______ years,
33. Tree Plantation month of July/August every year is known as ____
34. _______ is responsible for acid rain.
35. Which of the following groups contains all synthetic substances?