Changes in Materials that are Useful and Harmful to one’s Environment

Identify whether such changes in the materials are useful or harmful to the environment

Cutting a piece of cloth to be made into handkerchief

• Useful

• Harmful

Growing plants in the backyard

• Useful

• Harmful

Dumping of wastes at the vacant lot

• Useful

• Harmful

Cutting of lumber into chairs and tables

• Useful

• Harmful

Selling of bottles, paper and cardboard materials

• Useful

• Harmful

Using eco bag or native baskets instead of plastic bags at grocery store

• Useful

• Harmful

Making a compost pit/bin in the yard for your biodegradable materials

• Useful

• Harmful

Recycling of old notebooks

• Useful

• Harmful

Repairing of furniture

• Useful

• Harmful

Using old tires as flower pots

• Useful

• Harmful