identify the following changes that will happen in the materials in each activity or situation.tell whether they are useful or harmful in the environment.write the correct answer in the proper column. 1.cutting of trees. 2.shaping of wood to make furniture. 3.hammering /shaping iron to make bolo. 4. burning of old tires. 5.shredding paper for paper mache.
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Answer:
useful:
shaping of wood to make furniture
hammering/shaping iron to make bolo
shredding paper for paper mache
harmful:
cutting trees
burning of old tires