Question

which statement is true about plastics? they are natural materials. they have only harmful effects on society. they are always soft and flexible. they have a wide variety of properties.

Explanation:

Plastics are synthetic materials, not natural. They can have both beneficial and harmful effects. Some plastics are hard and rigid, not always soft and flexible. However, plastics do have a wide variety of properties such as different melting - points, strengths, and chemical resistances.

Answer:

They have a wide variety of properties.