Which of the following materials can be harmful to the environment when disposed of improperly?

Which of the following activities shows a change in material that is beneficial or useful to the environment?

Which of these changes in materials is considered harmful to the environment because it contributes to air pollution?

Which of the following describes a useful change in materials that helps reduce environmental waste?

Which of these changes in materials is considered harmful to the environment because it can kill fish and other aquatic animals?

Which of these changes in materials is considered useful because it helps conserve natural resources?

Which of these changes in materials is considered harmful to the environment because it leads to long-term soil pollution?

Which of the following describes a useful change in materials when dealing with old glass jars and plastic containers?

Which of the following describes a harmful change in materials when old electronic devices are disposed of by burning them?

Which of the following changes in material is considered harmful because it produces soot and carbon dioxide that traps heat in the atmosphere?