Let our kids exercise
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#1. The reflection of sound waves is called _________________
#2. The process by which green plants make their own food is called _________________-
#3. The following are composition of air except
#4. The following are the properties of carbon monoxide except
#5. Sound transmits through _____
#6. Which gas is almost 1/5 of air
#7. Which from the list is not a source of carbon dioxide
#8. _________________ is not a source of carbon monoxide
#9. _____________ gas prevents rapid burning, used to make fertilizers ,does not provoke fizzy in soft drinks like in SODA
#10. During photosynthesis, plants release or give out _____________-
#11. 21% is the amount of ________________ in air
#12. The major or main uses of Oxygen are the following except __________
#13. ________________ is not the importance or use or function of Carbon dioxide
#14. During respiration, plants release or give our ___________________
#15. The gases which trap heat in the atmosphere are called ____________
#16. The noticeable increase in temperature in the atmosphere is called ______________
#17. Which from the list are the green house gas ?
#18. The following are the types of wind except ________________
#19. Which gas is used in lighting the bulb ?
#20. The following are the effects of carbon monoxide except
