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Unit 5 Worksheet B


B . Fill in the blanks with the words given.


rotten

air

plants

acid rain




plastic

trees

waste decay

accumulating




microorganisms


non-biodegradable









1. Waste that can decay includes  ____________________    and
    animals .             

                                                                                                          

2. A waste that not decay is known as _____________________
    waste.


3. ______________________ is not easily decay.


4. Waste that can decay becomes ______________________
    easily.
 

5. Waste decay prevents waste from  ______________________   
in the environment.


6.  Recycling paper can reduce the number of ______________________ being cut down.


7.  __________________________ can kill plants and erode buildings.


8.  _________________________ pollution can damage our lungs and irritate our eyes.


9.  __________________________ is the breakdown of waste to simple substances that are then returned to the soil as nutrients.


10.Waste decay is caused by the action of __________________.









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