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- 1. Multiple Choice
Which of these materials undergo decay?
plastic
tin cans
banana peelings
rubber
- 2. Multiple Choice
Materials that undergo decay are useful to our body?
Yes
No
Maybe
- 3. Multiple Choice
Which material does not belong to undergo decay?
- 4. Multiple Choice
Which material does not belong to undergo decay.
- 5. Multiple Choice
Which material does not belong to undergo decay.
- 6. Multiple Choice
How do we know if the material is decaying?
It has a nice color
It has a bad smell
It has a good smell
It has a lot of sauce
- 7. Multiple Choice
How do we know if the material is decaying?
it is sweet
it has a nice color
It has worms
it looks delicious
- 8. Multiple Choice
Which of the following DOES NOT contribute to the decaying process of materials?
water
sunlight
glass
soil
- 9. Multiple Choice
Some decaying materials can be useful
true
false
all of the above
none of he above
- 10. Multiple Choice
We put our food leftovers into the soil to make __________?
another food
plants
perfume
fertilizer
- 11. Multiple Choice
What we should do to avoid decaying of material?
Keep left over foods inside the refrigerator
Put it outside to get direct sunlight
bury it into the soil
Add water into it
- 12. Multiple Choice
Bread, fruits, vegetables and leftover foods are example of materials ______
undergo hardness
undergo decay
does not undergo decay
does not undergo hardness
- 13. Multiple Choice
What is the useful benefits of decaying materials?
Recyclable
Extra food
Organic Fertilizer
Reuse
- 14. Multiple Choice
Which of the following is not a good way to avoid decay?
Refrigerate
Store food outside
Store goods well
Proper waste segregation
- 15. Multiple Choice
Decay
Non decay
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