Question

DDT is a synthetic substance that was developed for use as a pesticide for crops. It was a very effective pesticide, and it was widely used for many years.

However, scientists then discovered that it was harmful to ecosystems and to human health. Use of DDT for most purposes is now banned in most countries.
Which statement about synthetic materials is best supported by the example of DDT?
OA. Most synthetic materials are harmful to people and animals, but most natural materials are not.
OB. Negative effects of synthetic materials may not be known until the materials are already in use.
OC. Naturally occurring materials usually accomplish their purpose more effectively than synthetic materials.
OD. The harmful effects of synthetic materials usually outweigh their benefits.

Answer 1

The example of DDT supports the idea that negative effects of synthetic materials may not be known until the materials are already in use.

Step-by-step explanation:

The statement that is best supported by the example of DDT is option B - Negative effects of synthetic materials may not be known until the materials are already in use.

DDT was initially hailed as an effective pesticide, but its harmful effects on ecosystems and human health were discovered later. This example demonstrates that sometimes the negative impacts of synthetic materials may not be immediately apparent or understood until after they are widely used.

Learn more about harmful effects of synthetic materials