Let our kids exercise
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#1. The gases which trap heat in the atmosphere are called ____________
#2. The reflection of sound waves is called _________________
#3. During respiration, plants release or give our ___________________
#4. The following are the properties of carbon monoxide except
#5. Sound transmits through _____
#6. The major or main uses of Oxygen are the following except __________
#7. The following are composition of air except
#8. The following are the properties of air except _________
#9. Which gas is almost 1/5 of air
#10. The noticeable increase in temperature in the atmosphere is called ______________
#11. Which from the list are the green house gas ?
#12. Which from the list is not a source of carbon dioxide
#13. The following are the effects of carbon monoxide except
#14. During photosynthesis, plants release or give out _____________-
#15. The following are the types of wind except ________________
#16. _________________ is not a source of carbon monoxide
#17. The process by which green plants make their own food is called _________________-
#18. ________________ is not the importance or use or function of Carbon dioxide
#19. The moving mixture of many gases is called ________________
#20. Which gas is used in lighting the bulb ?





