1. The main components of environment are

2. The part of the solution which is less in quantity called

3. The biotic components of the environment Include..............

4. Which substance is called universal solvent

5. The animals which kill and hunt other animals for food called

6. The energy in an object due its pissition is called

7. Meteoroid which burns after entering earth's atmosphere is called

8. Air contains 0.03%...........

9. The speed of sound is........... Meter per second in iron

10. Matter consisting of one kind of atoms is called

11. The particles are settled down at the bottom of the container.

12. ................. Cell has only one large vacule

13. Olfactory nerves links....... and...........

14. The protective layer of leaf is called

15. How Many types of mixture

16. .................. is used in electric bulbs and flourescent lamps

17. A solution consisting of two substances is called

18. The structural and functional unit of life is called ....................

19. A spherical mirror whose inner surface is reflecting is called

20. Ability to do work is called

21. The energy in an object due its motion is called

22. Which gass is used in photosynthesis?

23. Gear system is an advanced shape of

24. Which of the following is not detected by skin?

25. The number of naturally occurring elements is

26. Which factor affects the soulbality of substances

27. ....................... Is a friendly relationship between two organisms

28. What is receptor

29. America launched its first space station skylab into space in

30. Air contain.................. Nitrogen