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#1. These are the importance of Carbon dioxide except
#2. Nitrogen has the following importance except
#3. The percentage of rare gases in the air is______
#4. The process by which green plants make their own food is called _______________
#5. ________________ is the increase of of atmospheric temperature on earth’s surface
#6. The tree types of sound are the following except
#7. The occupation of Nitrogen in air is __________
#8. Rare gases like Argon is useful in________________
#9. ______________ is a work(moisten flour or clay) into dough or paste with hands
#10. Oxygen occupies ___________ in the air
#11. These are the uses of Oxygen except
#12. An electronic machine used to input data and process them by after provide output result as information is know as_________
#13. The mixture of Oxygen, Carbon dioxide, Nitrogen ,Rare gases and other gases is called____________________
#14. Choose the correct property of air .
#15. Choose the correct property of air .
#16. The processed data is called _____________
#17. The growing of seed into seedlings or young plant is commonly known as___________
#18. Choose the correct answer
#19. _____________ is a moving air
#20. The growing of crops and the keeping of animal is commonly known as________________
#21. The following are the properties of carbon monoxide except
#22. Anything we can see or touch is called _____________________
#23. Which from the list is not the source of carbon monoxide ?
#24. Which from the list is not a type of wind?
#25. The following are the importance of wind in our daily life except
#26. The reflected sound is called__________________
#27. Choose the correct property of air .
#28. The chemicals we use in agriculture are called _______________________
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